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CAS No. : | 1273-86-5 | MDL No. : | MFCD00040878 |
Formula : | C11H12FeO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 216.06 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P330-P362+P364-P403+P233-P501 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With ferrocene-labeled Merrifield resin-supported ionic liquid ([FemDMMerA]RuO4) In tetrahydrofuran for 4h; Reflux; Green chemistry; | General procedure for the oxidation of alcohols General procedure: A mixture of aryl alcohol (1 mmol) and [FemDMMerA]Y (100 mg) in solvent(5 mL) was refluxed in oil bath. After completion of the reaction as monitored byTLC, the reaction mixture was filtered to remove insoluble SILP catalyst.Evaporation of solvent in vacuuo followed by column chromatography over silicagel using petroleum ether/ethyl acetate (95:5 v/v) afforded pure aldehydes. |
90% | With C34H37N4O6Ru2(1+)*Cl(1-); potassium hydroxide In toluene at 70℃; for 6h; Schlenk technique; Inert atmosphere; | |
88% | With 1-methyl-1H-imidazole; [2,2]bipyridinyl; 2,2,6,6-tetramethyl-piperidine-N-oxyl; TPGS-750-M; copper(I) bromide In water at 20℃; for 24h; |
78% | With oxygen; potassium carbonate In toluene at 80℃; for 24h; | Aerobic oxidation of benzyl alcohols A mixture of K2CO3 (1 mmol) and the catalyst (52 mg, ∼3 mol% of Pd2+) in toluene (5 ml) was prepared in a two necked flask. The flask was evacuated and refilled with pure oxygen. To this solution, the alcohol (1 mmol, in 1 ml toluene) was injected and the resulting mixture was stirred at 80 °C under an oxygen atmosphere. After completion of reaction, the reaction mixture was filtered off and the catalyst rinsed twice with CH2Cl2 (5 ml). The excess of solvent was removed under reduced pressure to give the corresponding carbonyl compounds. |
77% | With pyridine; 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2,4,6-triphosphorine In tetrahydrofuran all mixed in THF, refluxed for 5 h; evapd.(vac.), diluted (H2O), extd.(CH2Cl2), org. layer washed (10% HCl),dried (Na2SO4), evapd., chromy.(silica gel-10% ethyl acetate in petrole um ether); | |
72% | With 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2,4,6-triphosphorine; sodium hydride In tetrahydrofuran; mineral oil to a suspn. of NaH in mineral oil in THF added dropwise Fe complex in THF at 0°C, warmed to room temp., stirred for 30 min, treated with ligand in THF, refluxed for 3 h; cooled to room temp., evapd.(vac.), chromy.(alumina-petroleum ether-CH2Cl2 1:1), elem. anal.; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With aluminium trichloride In diethyl ether in abs. ether;; | |
With aluminium trichloride In diethyl ether in abs. ether;; | ||
In diethyl ether in abs. ether;; |
With AlCl3 In diethyl ether in abs. ether;; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | With sodium tetrahydroborate In methanol at 0 - 20℃; Inert atmosphere; | |
98% | With C46H49CoN3P4(2+)*2BF4(1-); hydrogen; potassium hydroxide In ethanol; acetonitrile at 60℃; for 24h; Autoclave; Glovebox; chemoselective reaction; | |
97% | With lithium aluminium tetrahydride at 45℃; for 2h; Inert atmosphere; Reflux; | 3.2 (2) Synthesis of ferrocene methanol: ferrocene formaldehyde (10 g, 0.047 µM) dissolved in anhydrous ethyl ether in, and transfer it to the constant pressure in the dropping funnel; in three-neck round bottom flask is added in the tetrahydro (1.8 g, 0 . 047 µM), under the protection of the helium, the ferrocene formaldehyde solution is slowly dripped into stirring in in the tetrahydro solution, then completing after 45 °C reflow 2 h, for at the same time thin-layer chromatographic monitoring the reaction; after the reaction, cooling to room temperature, then adding 60 ml ethyl ether, excessive cooling of the tetrahydro adding ethyl acetate and water mixture is removed; separatory funnel for the organic layer is separated out, and washing by water three times (once for each 100 ml water); and organic water-free magnesium sulfate drying 24 h after, for after the Rotavapor distillation under reduced pressure, to obtain yellow powder 7.32 g, yield 97%, melting point 76 - 78 °C. |
96% | With lithium aluminium tetrahydride In diethyl ether at 45℃; for 2h; Inert atmosphere; Schlenk technique; | |
89% | With sodium tetrahydroborate In tetrahydrofuran; ethanol at 0 - 20℃; for 3h; | 1 Ferrocenemethanol (2a) Synthesis Ferrocene carboxyl aldehyde (0.100 g, 0.467 mmol) was dissolved in ethanol (8 mL), was added slowly in small portions sodium borohydride (0.090 g, 2.4mmol) at 0 . The reaction mixture was stirred at ambient temperature for 3 hours. It was add water (3mL) and dichloromethane (10 mL) in turn to complete the reaction.The organic layer was separated and the remaining water layer was extracted three times with dichloromethane (15mL x 3). The combined organic layer is washed with a saturated aqueous sodium chloride solution, placed into the over anhydrous sodium sulfate, filtered under reduced pressure. After removal of all the solvent in the filtrate under reduced pressure was purified by column chromatography (hexane: ethyl acetate: methanol = 15: 5: 1) to give the compound 2a to give a yellow solid. (0.090 g, 89%) |
88% | With dimethylsulfide borane complex In tetrahydrofuran for 2h; Inert atmosphere; Schlenk technique; Cooling with ice; | |
84% | With [Ni(1,3-dimesitylimidazol-2-ylidene)Clcyclopentadienyl]; sodium triethylborohydride; diphenylsilane In tetrahydrofuran at 25℃; for 17h; Inert atmosphere; Schlenk technique; | |
83% | Stage #1: ferrocenecarboxaldehyde With nickel(II) acetate tetrahydrate; tricyclohexylphosphine In tetrahydrofuran at 70℃; for 16h; Stage #2: With sodium hydroxide In methanol | |
68% | Stage #1: ferrocenecarboxaldehyde With chloro(cyclopentadienyl)bis(triphenylphosphine)ruthenium (II); phenylsilane In toluene for 0.5h; Reflux; Stage #2: With tetrabutyl ammonium fluoride In toluene at 20℃; for 0.5h; chemoselective reaction; | 4.3. General procedure for the reduction of solid aldehydes with the system PhSiH3/[CpRu(PPh3)2Cl] General procedure: To a solution of [CpRu(PPh3)2Cl] (1 mol%) and solid aldehyde (1.0 mmol) in toluene (3 ml) was added PhSiH3 (1.2 mmol). The reaction mixture was stirred at reflux temperature under an air atmosphere (the reaction times are indicated in Table 4). Then, TBAF (1.0 mmol) was added and the reaction mixture was stirred at room temperature during 30 min. After evaporation, the reaction mixture was purified by silica gel column chromatography with ethyl acetate:n-hexane (1:3) to afford the corresponding alcohols. |
59% | With sodium tetrahydroborate In tetrahydrofuran; methanol at 20℃; | |
With borohydride | ||
With sodium tetrahydroborate In tetrahydrofuran | ||
With lithium aluminium hydride In diethyl ether reduction under Ar, Schlenk techniques; | ||
With lithium aluminium tetrahydride In tetrahydrofuran; 1,2-dimethoxyethane at 20℃; for 0.5h; Inert atmosphere; | Synthesis of ferrocenylcarbinol derivatives 9 General procedure: To a clean and dry round bottom flask with a septum, 3-5mmol of the ferrocenylketone were added and approximately 20mL of dimethoxyethane (DME) were transferred with a positive nitrogen pressure; the mixture was stirred to obtain a reddish solution. 0.75equivalents of lithium aluminum hydride (1M in tetrahydrofuran) were added, and a change of color from red to yellow in the solution was observed. The reaction was stopped after 30min at room temperature; complete transformation was confirmed with TLC. After this time, Glauber's salt was added and the mixture was stirred until a formation of a granular precipitate was observed. The mixture was filtered, and the solvent was eliminated to obtain yellow to orange oils or solids. The compounds were employed directly for following reactions without further purification. | |
With sodium tetrahydroborate In methanol Sealed tube; | ||
With sodium tetrahydroborate; ethanol In tetrahydrofuran for 0.5h; Inert atmosphere; Sealed tube; | 1 To a round bottomed flask equipped with a magnetic stirrer bar was added ferrocene carboxaldehyde(535 mg, 2.5 mmol, 1 eq). The flask was then charged with ethanol (4 cm3) and THF (1 cm3). Thered solution was then treated with sodium borohydride (123 mg, 3.2 mmol, 1.3 eq). The flask wasthen sealed and placed under a nitrogen atmosphere. After 30 minutes the solution had changedcolour to an orange and TLC analysis indicated full consumption of the starting material. The flaskwas then concentrated to 90% of original volume in vacuo. The dark orange residue was then takenup in EtOAc (15 cm3) and NaHCO3 (15 cm3). The bi-phasic mixture was transferred to separatingfunnel, the aqueous layer was separated and then back extracted with EtOAc (3 x 5 cm3), thecombined organic washings were then dried over MgSO4, filtered and then concentrated in vacuo togive a yellow solid. The ferrocene methanol was then taken up in 1,3-propanediol (5 cm3), the yellowsolution was then treated with ytterbium (Ill) triflate (77 mg, 0.125 mmol, 5 mol%). The flask wasthen sealed and heated to 100 °C. After heating for 10 minutes TLC analysis indicated fullconsumption of the starting material. The flask was cooled to room temperature, diluted with H20(20 cm3) and EtOAc (20 cm3). The organic layer was then separated and the aqueous layer backextracted with EtOAc (3 x 5 cm3). The combined organic layers were then washed with H20 (2018 cm3) and brine (sat) (20 cm3) then dried over MgSO4, filtered then concentrated in vacuo to give an orange solid. Purification was then carried out by silica-gel chromatography eluting with n-Hex 1:1 EtOAc to give the desired product 3-(ferrocenyloxy)propan-lol (1) as an orange powder (514 mg, 74%).‘H NIVIR (250 MHz, CDC13); oH: 4.24 (s, 4H), 4.11 (s, 6H), 3.65 (t, 2H, J 5.4 Hz), 3.54 (t, 2HJ=5.4 Hz), 3.65 (t, 2H J = 5.4 Hz), 2.52 (br s, 1H), 1.7 (quin 2H, J = 5.6 Hz); ‘3C NIVIR (75 IVIHz, CDC13); Oc: 83.6, 77.3, 71.5, 69.4, 69.3, 69.2, 68.7, 32.0; HRMS (ESI iTOF) calculated for C,4H,8FeO2Na m/z 297.0553 found 297.0560 (m/z + Na); Electrochemical potential: 181 mV. | |
With sodium tetrahydroborate | ||
With sodium tetrahydroborate In tetrahydrofuran; methanol | ||
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; C19H23N2O8PS(2-)*2Na(1+); sodium formate; alkaline phosphatase In ethanol at 37℃; for 0.5h; | ||
With sodium tetrahydroborate In methanol | ||
With sodium tetrahydroborate In methanol Inert atmosphere; Schlenk technique; | ||
With sodium tetrahydroborate In isopropyl alcohol | ||
With sodium tetrahydroborate In tetrahydrofuran | ||
With sodium tetrahydroborate In ethanol | ||
With sodium tetrahydroborate In tetrahydrofuran at 20℃; for 2h; | ||
With sodium tetrahydroborate | ||
With sodium tetrahydroborate In tetrahydrofuran; methanol at 20℃; for 24h; Inert atmosphere; Schlenk technique; | ||
With methanol; sodium tetrahydroborate at 0 - 20℃; Schlenk technique; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With phosphorus trichloride In benzene presence of small amt. of pyridine;; | ||
With acetyl chloride In not given byproducts: CH3COOH; | ||
With PCl3 In benzene presence of small amt. of pyridine;; |
With oxalyl dichloride In dichloromethane for 4h; Inert atmosphere; | Synthesis of [Pt2(μ-S)(μ-SCH2Fc)(PPh3)4]PF6 3a using FcCH2Cl To a solution of FcCH2OH (250 mg, 1.16 mmol) in dichloromethane(20 mL) was added oxalyl chloride (6 drops, excess) and theresulting solution stirred for 4 h under a nitrogen atmosphere.The volatiles were removed under vacuum, and the resulting solidwas briefly washed with water (10 mL). [Pt2(μ-S)2(PPh3)4](400 mg, 0.266 mmol) and methanol (40 mL) were added, andthe mixture stirred, rapidly forming a greenish solution. Calciumcarbonate (ca. 1 g) was added, whereupon the mixture lightenedto a yellow-orange colour. After stirring for 16 h, the mixturewas filtered, and to the filtrate was added NH4PF6 (200 mg,1.23 mmol). Water (5 mL) was added to assist precipitation ofthe product. The solid was filtered, washed with water (10 mL)and diethyl ether (10 mL), and dried under vacuum to give theproduct as a light orange powder (298 mg, 61%). Crystallisationby vapour diffusion of diethyl ether into a dichloromethane solutionof the complex at room temperature gave orange crystals ofthe bis-dichloromethane solvate 3a 2CH2Cl2. Found: C, 50.6; H,3.7%. C85H75Cl4F6FeP5Pt2S2 requires C, 50.6; H, 3.8%. ESI MS[Pt2(μ-S)(μ-SCH2Fc)(PPh3)4]+ m/z 1702.282 (calculated m/z1702.261). The compound gave virtually indistinguishable31P{1H} and 1H NMR data (in the 0-6 ppm range) to the BPh4 salt3b (vide infra). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With [Fe(CO)2(Cp)][OTf] In dichloromethane at 20℃; for 1h; | |
60% | With CH3COOH or CF3COOH |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94% | With CH3COOH or CF3COOH | |
91% | With [Fe(CO)2(Cp)][OTf] In dichloromethane at 20℃; for 1h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With HBF4 or HClO4 In dichloromethane byproducts: H2O; aq. HBF4 (45 %) or HClO4 (70 %) added to the Fe-complex and acac, soln.stirred (30 min, 20°C), addn. of ether; ether soln. washed twice (water), dried (sodium sulfate); solvent removed (vac.), recrystn. (hexane); | |
98% | With tetrafluoroboric acid In dichloromethane; water addn. dropwise of HBF4 (40% in water) to soln. of pentane-2,4-dione and ferrocenylmethanol in CH2Cl2; stirring at room temp. for 1 h; diluting with H2O; extn. with CH2Cl2; drying over Na2SO4, filtration, concn. in vac., as oil; | |
90% | With ammonium cerium (IV) nitrate In acetonitrile at 20℃; for 0.583333h; Inert atmosphere; Schlenk technique; | Synthesis of 3-ferrocenylmethyl-pentane-2,4-dione (1) In a Schlenk tube, 1.00 g (4.63 mmol) of ferrocenyl methanol and 0.47 mL(4.7 mmol) of 2,4 pentanedione were dissolved in 8 mL of acetonitrile at room temperature (rt). After 5 min of stirring, 0.125 g (0.23 mmol) of cerium(IV)ammonium nitrate (5% molar) were added. The reaction mixture was stirred for 30 min at rt and then evaporated under reduced pressure. The solid residue was mixed with 5 mL of water and extracted with 10 mL of dichloromethane.The organic phase was dried over MgSO4, filtered off and evaporated under reduced pressure to afford 1.25 g (4.29 mmol, 90% yield) of 1 as an orange oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With HClO4 or HBF4 In dichloromethane byproducts: H2O; aq. HClO4 (70 %) or HBF4 added (vigorous stirring) to the Fe-complex and the amine; soln. stirred (60 min, room temp.), addn. of ether; ethereal soln. washed twice (water), dried (sodium sulfate), solvent removed (vac.), recrystn. (heptane); elem. anal.; | |
92% | With [Fe(CO)2(Cp)][OTf] In dichloromethane at 20℃; for 1h; | |
84% | In methanol; water pH=9.7, in boiling CH3OH/H2O; |
84% | In methanol; water pH=9.7, in boiling CH3OH/H2O; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With tetrafluoroboric acid In dichloromethane; water at 20℃; for 0.0833333h; | 1 (Ferrocenylmethyl) (phenyl) sulfane (3a) Synthesis Ferrocenemethanol (2a, 0.020 g, 0.093 mmol) was dissolved in dichloromethane (0.4 mL) thio phenol (0.031 g, Place the 0.28 mmol). Fluoro boric acid solution to the solution put (48 wt%, 0.034 mL, 0.18 mmol). Mixed reactions After stirring for 5 minutes with water at room temperature, poured into a saturated aqueous solution of sodium bicarbonate (5 mL), place a dichloromethane (10 mL) Uh diluted. The organic layer was separated and extracted three times the remaining water layer with dichloromethane (10 mL x 3). Oil collected Group layer is washed with a saturated aqueous sodium chloride solution, placed into the over anhydrous sodium sulfate, filtered under reduced pressure. The solvent of the filtrate under reduced pressure After removing all column chromatography (hexane: ethyl acetate = 30: 1) to give compound 3a as a yellow solid (0.028 g, 98%). |
92% | With CF3COOH or CH3COOH | |
88% | With [Fe(CO)2(Cp)][OTf] In dichloromethane at 20℃; for 1h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84% | With [N,S-(2-(2-(diphenylphosphino)benzylidene)-N-ethylthiosemicarbazone)RuH(CO)(PPh3)2]; potassium hydroxide In toluene at 100℃; for 12h; | |
70% | In methanol; water pH 9.7; | |
70% | In water boiling, pH 9.7; |
In ethylene glycol 100 to 130°C, pH 9.7; | ||
In neat (no solvent) 110°C; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | With [RuCl(CO)(PPh3)(PNS-Me)]; potassium hydroxide In toluene at 100℃; for 12h; | |
91% | With [N,S-(2-(2-(diphenylphosphino)benzylidene)-N-ethylthiosemicarbazone)RuH(CO)(PPh3)2]; potassium hydroxide In toluene at 100℃; for 12h; | |
78% | With indium(III) triflate In water at 100℃; for 7h; chemoselective reaction; | 4.2 General procedure for the alkylation of indoles, anilines and thiols with enamide General procedure: Amine (1.0mmol), In(OTf)3 (0.1mmol) and anisyl alcohol (1.2mmol) were added into a flask. Then the mixture was vigorously stirred at reflux, until amine was completely consumed as indicated by TLC analysis or 24h. After the completion of reaction, CH2Cl2 (15mL×2) was used to extract the product, the organic layer was dried with anhydrous Na2SO4. Then the solvent was evaporated under the reduced pressure. The residue was purified by flash column chromatography with ethyl acetate and petroleum ether as eluents to afford pure product. This procedure was followed for the synthesis of other N-benzylation amines. |
68% | In ethylene glycol 100 to 130°C; | |
68% | In neat (no solvent) 110°C; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | With HClO4 or HBF4 In dichloromethane byproducts: H2O; aq. HClO4 (70 %) or HBF4 (45 %) added (vigorous stirring) to the Fe-complex and the amine; soln. stirred (30 min, room temp.), addn. of ether; ethereal soln. washed twice (water), dried (sodium sulfate), solvent removed (vac.), recrystn. (heptane); elem. anal.; | |
87% | With [N,S-(2-(2-(diphenylphosphino)benzylidene)-N-ethylthiosemicarbazone)RuH(CO)(PPh3)2]; potassium hydroxide In toluene at 100℃; for 12h; | |
86% | With [RuCl(CO)(PPh3)(PNS-Me)]; potassium hydroxide In toluene at 100℃; for 12h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 46% 2: 41% | With HBF4; NH3 In chloroform; water monomer addn. of aq. soln. of HBF4 with vigorous stirring to mixt. of indazole and (C5H5Fe(C5H4CH2OH) in CHCl3; stirring for 5 min; addn. of distd. water and aq. ammonia; addn. of ether, sepn. of org. layer, evapn. of solvent in air, dissolving in CHCl3, chromy. on Al2O3; elution with benzene; removal of solvent; elution with chloroform, removal of solvent, recrystn. from hexane; | |
1: 37% 2: 33% | With hydrogen tetrafluoroborate In dichloromethane; water monomer at 20℃; for 1h; | Synthesis of 1-N-ferrocenylmethyl- and 2-N-ferrocenylmethylindazoles (1 and 2). To a solution of indazole (2.50 g, 0,021 mol) in CH2Cl2 (100 ml) ferrocenylmethanol (4.58 g, 0.021 mol), water (8 ml) and 48% HBF4 (12 ml) were added. The mixture was stirred for 1 h, diluted with water, basified with sodium hydroxide solution to pH 10, extracted with CH2Cl2, washed with water and brine, dried over Na2SO4 and evaporated. The residue was purified by SiO2 column chromatography with AcOEt/petroleum ether (1:9) to afford 1 and 2. 1: 2.47 g (37%). Yellow powder, m. p. 137-138° C. Rf = 0.54 (light petroleum ether/AcOEt = 4:1). Anal.: C, 68.01; H, 5.41; Fe, 17.5; N, 8.49%. Calc. for C18H16FeN2: C, 68.38; H, 5.10; Fe, 17.66; N, 8.86%. IR (KBr, ν, cm-1): 1106, 1000, 820, 491, 481 ( C5H5FeC5H4). EI-MS, m/z (RI, %): 316 [ M]+ (100). 1H NMR (500 MHz, CDCl3) δ 8.01 (s, 1H, H3), 7.74 (d, J = 8.1 Hz, 1H, H4), 7.49 (d, J = 8.4 Hz, 1H, H7), 7.39 (t, J = 7.7 Hz, 1H, H6), 7.15 (t, J = 7.3 Hz, 1H, H5), 5.35 (s, 2H, CH2), 4.34 - 4.29 (m, 2H, C5H4), 4.19 (s, 5H, C5H5), 4.16 - 4.12 (m, 2H, C5H4). 13C NMR (126 MHz, CDCl3) δ 139.0 (C8), 132.8 (C3), 126.1 (C6), 124.2 (C9), 121.1 (C4), 120.5 (C5), 109.3 (C7), 83.7 (ipso-C5H4), 68.8 ( C5H5), 68.7 ( C5H4), 68.3 ( C5H4), 48.8 ( CH2). 2: 2.20 g (33%). Yellow powder, m. p. 166-167° C. Rf = 0.39 (light petroleum ether/AcOEt = 4:1). Anal.: C, 68.39; H, 5.27; Fe, 17.0; N, 8.61%. Calc. for C18H16FeN2: C, 68.38; H, 5.10; Fe, 17.66; N, 8.86%. IR (KBr, ν, cm-1): 1102, 1001, 817, 500, 482 ( C5H5FeC5H4). EI-MS, m/z (RI, %): 316 [ M]+ (100). 1H NMR (500 MHz, CDCl3) δ 7.84 (s, 1H, H3), 7.72 (d, J = 8.8 Hz, 1H, H7), 7.61 (d, J = 8.4 Hz, 1H, H4), 7.31 - 7.25 (m, 1H, H6), 7.10 - 7.04 (m, 1H, H5), 5.39 (s, 2H, CH2), 4.40 - 4.36 (m, 2H, C5H4), 4.24 (t, J = 1.8 Hz, 2H, C5H4), 4.22 (s, 5H, C5H5). 13C NMR (126 MHz, CDCl3) δ 148.6 (C8), 125.8 (C6), 121.8 (C9), 121.7 (C3), 121.5 (C5), 120.2 (C4), 117.5 (C7), 81.6 (ipso- C5H4), 69.3 ( C5H4), 69.0 ( C5H4), 68,9 ( C5H5), 53.4 ( CH2). |
1: 37% 2: 33% | With hydrogen tetrafluoroborate In dichloromethane; water monomer at 20℃; for 1h; | Synthesis of 1-N-ferrocenylmethyl- and 2-N-ferrocenylmethylindazoles (1 and 2). To a solution of indazole (2.50 g, 0,021 mol) in CH2Cl2 (100 ml) ferrocenylmethanol (4.58 g, 0.021 mol), water (8 ml) and 48% HBF4 (12 ml) were added. The mixture was stirred for 1 h, diluted with water, basified with sodium hydroxide solution to pH 10, extracted with CH2Cl2, washed with water and brine, dried over Na2SO4 and evaporated. The residue was purified by SiO2 column chromatography with AcOEt/petroleum ether (1:9) to afford 1 and 2. 1: 2.47 g (37%). Yellow powder, m. p. 137-138° C. Rf = 0.54 (light petroleum ether/AcOEt = 4:1). Anal.: C, 68.01; H, 5.41; Fe, 17.5; N, 8.49%. Calc. for C18H16FeN2: C, 68.38; H, 5.10; Fe, 17.66; N, 8.86%. IR (KBr, ν, cm-1): 1106, 1000, 820, 491, 481 ( C5H5FeC5H4). EI-MS, m/z (RI, %): 316 [ M]+ (100). 1H NMR (500 MHz, CDCl3) δ 8.01 (s, 1H, H3), 7.74 (d, J = 8.1 Hz, 1H, H4), 7.49 (d, J = 8.4 Hz, 1H, H7), 7.39 (t, J = 7.7 Hz, 1H, H6), 7.15 (t, J = 7.3 Hz, 1H, H5), 5.35 (s, 2H, CH2), 4.34 - 4.29 (m, 2H, C5H4), 4.19 (s, 5H, C5H5), 4.16 - 4.12 (m, 2H, C5H4). 13C NMR (126 MHz, CDCl3) δ 139.0 (C8), 132.8 (C3), 126.1 (C6), 124.2 (C9), 121.1 (C4), 120.5 (C5), 109.3 (C7), 83.7 (ipso-C5H4), 68.8 ( C5H5), 68.7 ( C5H4), 68.3 ( C5H4), 48.8 ( CH2). 2: 2.20 g (33%). Yellow powder, m. p. 166-167° C. Rf = 0.39 (light petroleum ether/AcOEt = 4:1). Anal.: C, 68.39; H, 5.27; Fe, 17.0; N, 8.61%. Calc. for C18H16FeN2: C, 68.38; H, 5.10; Fe, 17.66; N, 8.86%. IR (KBr, ν, cm-1): 1102, 1001, 817, 500, 482 ( C5H5FeC5H4). EI-MS, m/z (RI, %): 316 [ M]+ (100). 1H NMR (500 MHz, CDCl3) δ 7.84 (s, 1H, H3), 7.72 (d, J = 8.8 Hz, 1H, H7), 7.61 (d, J = 8.4 Hz, 1H, H4), 7.31 - 7.25 (m, 1H, H6), 7.10 - 7.04 (m, 1H, H5), 5.39 (s, 2H, CH2), 4.40 - 4.36 (m, 2H, C5H4), 4.24 (t, J = 1.8 Hz, 2H, C5H4), 4.22 (s, 5H, C5H5). 13C NMR (126 MHz, CDCl3) δ 148.6 (C8), 125.8 (C6), 121.8 (C9), 121.7 (C3), 121.5 (C5), 120.2 (C4), 117.5 (C7), 81.6 (ipso- C5H4), 69.3 ( C5H4), 69.0 ( C5H4), 68,9 ( C5H5), 53.4 ( CH2). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With sodium hydride In N,N-dimethyl-formamide; toluene; mineral oil at 0 - 20℃; for 3h; Inert atmosphere; | |
83% | With sodium hydride In N,N-dimethyl-formamide; toluene at 0 - 20℃; for 4h; | |
83% | With sodium hydride In N,N-dimethyl-formamide; toluene for 4h; |
81% | With sodium hydride In tetrahydrofuran at 20℃; | |
50% | With NaOH In dimethyl sulfoxide under Ar/N2, Schlenk techniques and glove box; soln. of (C5H5)Fe(C5H4CH2OH) (2.3 mmol) treated with NaOH (2.76 mmol) at room temp. for 30 min, CHCCH2Br (3.45 mmol) added dropwise, stirred for 24 h; diluted with cold H2O, extracted with EtOAc, organic layer dried over Na2SO4, solvent removed (vac.), chromd. (silica gel, EtOAc/hexane 25:75 v/v eluent); elem. anal.; | |
With sodium hydride at 80℃; for 8h; | ||
With sodium hydride In N,N-dimethyl-formamide at 80℃; for 4h; | ||
With sodium hydride In N,N-dimethyl-formamide at 20℃; Schlenk technique; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With [Fe(CO)2(Cp)][OTf]; N-butylamine In dichloromethane at 20℃; for 16h; | |
With Nafion film In carbon dioxide Nafion film and FcCH2OH were taken, reacted under 20MPa and 80°C; After opening the cell crystals was afforded; 1H NMR and X-Ray; | ||
With ClB(C8H4N2)3 In toluene under Ar atm. using Schlenk techniques; prepn. in boiling toluene; |
With phosphorus tribromide In tetrahydrofuran; water at 0 - 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | Stage #1: 1-methyl-1H-imidazole; 1-ferrocenylmethanol With acetic acid at 60℃; for 5h; Inert atmosphere; Schlenk technique; Stage #2: ammonium hexafluorophosphate In ethanol at 20℃; for 2h; Inert atmosphere; Schlenk technique; | Preparation of receptor 1-(ferrocenylmethyl)-3-methylimidazolium hexafluorophosphate (1b). General procedure: Under a nitrogen atmosphere, ferrocenyl methanol (216 mg, 1 mmol) and 1-methylimidazole (240 mg, 3 mmol) were dissolved in 3 mL of acetic acid and stirred for 5 h at 60 °C. Volatiles were evaporated, and a solution of NH4PF6 (1.11 g, 6.2 mmol) in EtOH (5 mL) was added. After the solution had been stirred for 2 h at room temperature, the solvent was evaporated. CH2Cl2 was added to the solution, and the solution was filtered through Celite. The solvent was removed, and the residues were recrystallization from acetone/ether afforded 0.30 g (71% yield) of 1b as yellow needles. 1H NMR (600 MHz, CD3COCD3): δ (ppm) 4.08 (s, 3H, CH3), 4.26 (s, 5H, C5H5), 4.33 (s, 2H, C5H4), 4.54 (s, 2H, C5H4), 5.44 (s, 2H, CH2), 7.71 (s, 1H, CH=CH), 7.76 (s, 1H, CH=CH), 9.01 (s, 1H, NCH=N). 13C NMR (400MHz, CD3COCD3): δ (ppm) 36.92 (CH3), 50.13 (CH2), 69.56, 69.96, 70.10, 80.54 (Cp-C), 122.87, 124.54, 136.59 (imidazole-C). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | With 1,1,1,3',3',3'-hexafluoro-propanol at 20℃; for 0.166667h; Green chemistry; | |
65% | In water at 40℃; for 23h; | 4.5 Synthesis of 3-(ferrocenylmethyl)-2-hydroxy-1,4-naphthoquinones derivatives 10 General procedure: To a clean and dry round bottom flask containing 3-5mmol of the ferrocenylcarbinol, an equivalent quantity of 2-hydroxy-1,4-naphthoquinone and 20mL of water were added. The mixture was stirred and heated at 40°C or 70°C; the formation of a green solid in the walls of the flask was observed. Reaction was stopped when no change was detected by TLC, reaction time was variable depending on the product. The mixture was extracted with MTBE and the combined organic phase was dried over anhydrous sodium sulfate. The solvent was removed and the crude product (red to orange solid) was purified by column chromatography column on silica gel (230-400mesh) with a gradient of cyclohexane-benzene as eluent, obtaining green solids. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | at 50℃; for 18h; | General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottomflask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored byTLC and capillary electrophoresis, after completion of reaction. The reactionmixture was flash chromatographed by silica gel column to give the purecompounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
80% | at 50℃; for 18h; | General procedure: General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottom flask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored by TLC and capillary electrophoresis, after completion of reaction. The reaction mixture was flash chromatographed by silica gel column to give the pure compounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | at 90℃; for 15h; | General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottomflask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored byTLC and capillary electrophoresis, after completion of reaction. The reactionmixture was flash chromatographed by silica gel column to give the purecompounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
98% | at 90℃; for 15h; | General procedure: General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottom flask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored by TLC and capillary electrophoresis, after completion of reaction. The reaction mixture was flash chromatographed by silica gel column to give the pure compounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With 1,1,1,3',3',3'-hexafluoro-propanol at 90℃; for 8h; | General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottomflask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored byTLC and capillary electrophoresis, after completion of reaction. The reactionmixture was flash chromatographed by silica gel column to give the purecompounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With 1,1,1,3',3',3'-hexafluoro-propanol at 50℃; for 8h; | General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottomflask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored byTLC and capillary electrophoresis, after completion of reaction. The reactionmixture was flash chromatographed by silica gel column to give the purecompounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With 1,1,1,3',3',3'-hexafluoro-propanol at 50℃; for 4h; | General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottomflask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored byTLC and capillary electrophoresis, after completion of reaction. The reactionmixture was flash chromatographed by silica gel column to give the purecompounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
92% | With 1,1,1,3',3',3'-hexafluoro-propanol at 50℃; for 4h; | General procedure: General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottom flask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored by TLC and capillary electrophoresis, after completion of reaction. The reaction mixture was flash chromatographed by silica gel column to give the pure compounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With potassium hydroxide In toluene at 110℃; for 24h; Inert atmosphere; Sealed tube; | 13 Example 13: Hydrogen Transfer Reaction of Ferrocene Methanol and 4-Methylaniline Catalyzed by Carbon Supported Rhodium Nanomaterials Ferrocenemethanol (1.3 mmol), 4-methylaniline (1 mmol), carbon-supported ruthenium nanomaterial (20 mg),Potassium hydroxide (20 mg) was added to a 25 ml reaction tube with a magnetic stirrer.After repeated nitrogen suction three times, toluene (3 ml) was added via a syringe and then sealed and reacted at 110°C for 24 hours.After the reaction is completed, the catalyst is removed by filtration, and the filtrate is extracted by adding water and ethyl acetate, and the organic phases are combined.After drying, filtration, concentration under reduced pressure, and silica gel column chromatography, N-(ferrocenyl)aniline (yield 85%) was obtained. |
68% | With [RuCl(CO)(PPh3)(PNS-Me)]; potassium hydroxide In toluene at 100℃; for 12h; | |
With potassium hydroxide In toluene at 110℃; for 24h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With 1,1,1,3',3',3'-hexafluoro-propanol at 50℃; for 8h; | General procedure: General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottom flask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored by TLC and capillary electrophoresis, after completion of reaction. The reaction mixture was flash chromatographed by silica gel column to give the pure compounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With 1,1,1,3',3',3'-hexafluoro-propanol at 50℃; for 8h; | General procedure: General procedure: ferrocenemethanol was added to the substrates 1a-l in a round bottom flask and the mixture was heated under stirring at 50-90°C (as reported in Table 1), the reaction was monitored by TLC and capillary electrophoresis, after completion of reaction. The reaction mixture was flash chromatographed by silica gel column to give the pure compounds 3a-l as reported in Table 1. Typical eluent: hexane/ethyl acetate= 7/3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With potassium hydroxide semihydrate In dimethyl sulfoxide at 80℃; for 2h; | General procedure for the reaction of ferrocenylalkanols 1a,bwith propyne in the KOH/DMSO system General procedure: Method A (Table 2, entries 1,4). Into a glass 50-mL flask equipped with a stirrer, a reflux condenser,a thermometer, a bubbler for propyne supply, and a gasoutlet, alcohol 1a,b (5.0 mmol), KPO0.5O2P (0.16 g, 2.5 mmol),and DMSO (30 mL) were placed. Propyne was passed on stirring for2 h through the reaction mixture heated up to 80 C. After coolingto room temperature the reaction mixture was diluted with anaqueous 1% solution of NH4Cl (50 mL) and extracted with ether(530 mL), the extracts were washed from DMSO by water(230 mL), dried over Na2SO4. Column chromatography (basicAl2O3, eluent hexane/diethyl ether with gradient from 1:0 to 3:1) ofthe crude residue after removal of the solvent gave the pure adducts2c,d and unreacted alcohols 1a,b. |
65% | With potassium hydroxide In dimethyl sulfoxide at 70 - 80℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With potassium hydroxide semihydrate In dimethyl sulfoxide at 70℃; for 1h; Autoclave; | General procedure for vinylation of ferrocenylalkanols 1a,bwith acetylene General procedure: Method A (Table 1, entries 4, 5). A mixture of alcohol1a,b (30 mmol) and KPO0.5O2P (0.20 g, 3 mmol) in DMSO(50 mL) was placed into a 0.3-L Parr-reactor. The latter was fed withacetylene and then decompressed to atmospheric pressure toremove air. The autoclave was fed with acetylene again (initialpressure at ambient temperature was 13 atm) and heated (70 C)upon stirring for 0.75 or 1 h. The reaction mixture, after cooling toroom temperature, was diluted with an aqueous 1% solution ofNH4Cl (50 mL). The aqueous layer was extracted with diethyl ether(20 mL6), the extracts were washed with water (15 mL3) anddried (Na2SO4). Column chromatography (basic Al2O3, eluent hexane/diethyl ether with gradient from 1:0 to 1:1) of the crude residueafter removal of the solvent gave the pure adducts 2a,b andunreacted alcohols 1a,b. |
81% | With potassium hydroxide In dimethyl sulfoxide at 70 - 80℃; | |
With potassium hydroxide In dimethyl sulfoxide |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; caesium carbonate In toluene at 130℃; for 12h; | 14 Ν-(Ferrocenemethyl)benzamide The benzonitrile (103mg, 1mmol), [(IPr) AuNTf] (17mg, 0.02mmol, 2mol%),tetrahydrofuran (0.5ml), H 2O (0.5ml) were successively added to the reaction flask25mlSchlenk. After the mixture was reacted at 130 °C at 12 hours, cooled to roomtemperature, the solvent was removed in vacuo under reduced pressure. The [Cp * IrCl 2]2(8mg, 0.01mmol, 1mol%), ferrocene methanol (260mg, 1.2mmol), cesium carbonate (65mg,0.2equiv.) And toluene (1ml) was added to the reaction flask and the reaction mixturewas continued at 130 °C at 12 hours, cooled to room temperature. The solvent was removedrotary evaporation, then purified by column chromatography (developing solvent: ethylacetate / petroleum ether) to give pure title compound Yield: 83%. |
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; caesium carbonate In toluene at 130℃; for 12h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
16% | Stage #1: 1-ferrocenylmethanol With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Schlenk technique; Stage #2: 3-fluoro-4-(trifluoromethyl)benzonitrile In tetrahydrofuran at 0 - 20℃; Schlenk technique; | 4.a 3- (Ferrocenyloxy)-4-(trifluoromethyl)benzonitrile (1 ) 3- (Ferrocenyloxy)-4-(trifluoromethyl)benzonitrile (1 ) Ferrocenemethanol (0.19 g, 0.46 mmol) was dissolved in dry THF (40 mL). The solution was cooled with an ice bath to 0°C. Then NaH (16.8 mg, 0.7 mmol) were added and the reaction mixture was stirred for half an hour at 0°C. 3-fluoro-4-(trifluoromethyl)benzonitrile (0.096 g, 0.51 mmol) was added and the reaction mixture was allowed to warm to room temperature. The yellow reaction mixture was stirred overnight at room temperature. After stirring the mixture overnight, additional 3-fluoro-4-(trifluoromethyl) benzonitrile (0.198 g, 1.02 mmol) was added. The reaction was stirred for an additional 24 h at room temperature and then quenched with H20 (1 mL). The organic layer was evaporated under reduced pressure. The remaining residue was redissolved in CH2CI2 (20 mL) and was washed with H20 (5 mL) and brine (2 x 10 mL). The combined aqueous phases were extracted with CH2CI2 (10 mL). The combined organic phases were dried over MgS04, filtered and the solvent was evaporated under reduced pressure. The crude product was purified by column chromatography on silica with hexane:ethyl acetate (15:1 ) as the eluent (Rf = 0.42) to afford 3-(ferrocenyloxy)-4-(trifluoromethyl)benzonitrile (1 ) as a bright yellow solid. Yield: 16%. Elemental Analysis: calcd. for Ci9H14F3NOFe = C, 59.25; H, 3.66; N, 3.64. Found = C, 59.07; H, 3.57; N, 3.51. ESI-MS: m/z (%) = 385.05 ([M]+, 100. |
16% | Stage #1: 1-ferrocenylmethanol With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Schlenk technique; Stage #2: 3-fluoro-4-(trifluoromethyl)benzonitrile In tetrahydrofuran at 20℃; Schlenk technique; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
79% | With chloro(1,5-cyclooctadiene)rhodium(I) dimer; triphenylphosphine; potassium hydroxide In tert-Amyl alcohol at 130℃; for 2h; Microwave irradiation; | |
79% | With chloro(1,5-cyclooctadiene)rhodium(I) dimer; triphenylphosphine; potassium hydroxide at 130℃; for 2h; Microwave irradiation; Green chemistry; | 11 Example 11: 2-Phenyl-3- (2-ferrocenyl) propanamide A solution of cyanobenzyl cyanide (117 mg, 1 mmol)Ferrocene methanol (238 mg, 1.1 mmol)[Rh (cod) Cl] 2 (4.9 mg, 0.01 mmol, 1 mol%),Triphenylphosphine (26 mg, 0.1 mmol, 10 mol%),Potassium hydroxide (22 mg, 0.4 mmol, 40 mol%) were sequentially added to a 10 ml microwave reaction tube.The mixture was reacted at 130 ° C for 2 hours,Cool to room temperature. The solvent was removed by rotary evaporation and then the title compound was obtained by column chromatography (developing solvent: ethyl acetate / petroleum ether) in a yield of 79%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; caesium carbonate In tert-Amyl alcohol at 120℃; for 12h; Inert atmosphere; Schlenk technique; | |
80% | With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; caesium carbonate In tert-Amyl alcohol at 120℃; for 12h; Inert atmosphere; Schlenk technique; | 13 4-amin-N-(ferrocenemethyl)benzenesulfonamide Under a nitrogen atmosphere, 4-aminobenzenesulfonamide (172 mg, 1 mmol)[Cp * IrCl2] 2 (8 mg, 0.01 mmol, 1 mol%),Cesium carbonate (65 mg, 0.2 mmol),Ferrocene methanol (259 mg, 1.2 mmol)Tert-amyl alcohol (1.0 mL) was added sequentially to a 25 mL Schlenk reaction flask.The mixture was allowed to react at 120 ° C for 12 hours,Cooled to room temperature,The solvent was removed under vacuum.And then passed through a column chromatography (developing solvent: ethyl acetate / n-hexane)To pure target compound, yield: 80%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74% | With trifluoroacetic acid In acetone at 20℃; regioselective reaction; | Syntheses General procedure: To a solution of ferrocenylcarbinol, FcCHR(OH), (1.0 mmol) and 2-thiobenzimidazole (1.0 mmol) in acetone (5.0 ml) two drops of trifluoroacetic acid were added. The reaction mixture was stirred overnight until the residue was formed. Then the residue was filtered, washed with cold ether (2 x 20 ml) and dried in vacuo over CaCl2. N-ferrocenylmethyl-2-thio-benzoimidazole (3a) Yield 74%. Yellow powder, m.p. 198-200°С. Anal.: С 60.81; Н 4.77; N 7.81; S 8.76%. Calc. for С18Н16FeN2S: С 60.52; Н 4.80; N 7.84; S 8.98%. EI-MS, m/z (RI, %): 348 [M]+ (83). 1Н NMR (CDCl3, δ, ppm): 4.11 (s, 2H, Fc); 4.25 (s, 5H, Fc); 4.49 (s, 2H, Fc); 5.28 (s, 2H, CH2); 7.15-7.22 (m, 4H, Het); 10.43 (s, 1H, SH). 13C NMR (CDCl3, δ, ppm): 51.7 (CH2), 66.3 (C5H4), 66.9 (C5H4), 69.3 (C5H4), 69.7 (C5H5), 86.9 (ipso-C5H4), 109.9 (Het, C-5), 111.7 (Het, C-6), 122.8 (Het, C-4), 123.2 (Het, C-7), 128.9 (Het, C-9), 131.0 (Het, C-8), 166.7 (C-S). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
47% | With tetrafluoroboric acid In dichloromethane; water at 20℃; for 0.0833333h; regioselective reaction; | Syntheses General procedure: To a mixture of 1.0 mmol of ferrocenylcarbinol and 1.0 mmol of the corresponding heterocycle in 1.0 ml of methylene dichloride, 0.18 ml of 45% aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5 min then Et2O (15 ml), the same amount of cold water, and 5-10 mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture the organic solution was separated, washed with cold water (5 15 ml), the solvent was removed and the residue was dried over CaCl2. 3-Ferrocenylmethylbenzo[d]thiazole-2(3H)-thione (5a) Yield 47%. Dark brown crystals, m.p. 134-135 °C. Anal.: С 59.27; Н 4.09; N 3.80; S 17.50%. Calc. for С18Н15FeNS2: С 59.18; Н 4.14; N 3.83; S 17.56%. EI/MS, m/z (RI%): 365 [M]+ (78). 1Н NMR (CDCl3, δ, ppm): 4.12 (s, 2H, Fc), 4.24 (s, 5H, Fc), 4.51 (s, 2H, Fc), 5.44 (s, 2H, CH2), 7.32-7.42 (m, 4H, Het). 13C NMR (CDCl3, δ, ppm): 45.5 (CH2), 68.4 (C5H4), 69.0 (C5H5), 69.9 (C5H4), 81.2 (ipso-C5H4), 112.8 (C-4, Het), 121.3 (C-7, Het), 124.7 (C-6, Het), 126.8 (C-5, Het), 127.6 (C-8, Het), 141.3 (C-9, Het), 189.1 (C=S). |
Yield | Reaction Conditions | Operation in experiment |
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75% | With triethylamine In diethyl ether at 20 - 23℃; for 24h; | Synthesis of esters and diesters 14-22. General procedure: 1.1 mmol of triethylamine was added to a stirred mixture of 1.0 mmol of metallocene alcohol (7, 8, 12) or 0.45 mmol of ferrocene diol (10, 11) and 1.0 mmol of 4,5-dichloroisothiazole- or 5-arylisoxazole-3-carbonyl chloride in 50 mL of diethyl ether at 20-23°C. The reaction mixture was stirred at that temperature during 24 h. The precipitated triethylamine hydrochloride was filtered off and washed with diethyl ether (5 × 10 mL). The filtrate was washed with 10 % aqueous NaCl and 5 % aqueous NaHCO3. The solvent was removed, and the residue was recrystallized from a benzene-hexane (2 : 1) mixture (14, 15, 19, and 20) or from hexane (16,17, 21, and 22). 3,4,4-Trichloro-1-cymantrenylbut-3-en-1-yl 4,5-dichloroisothiazole-3-carboxylate 18 was obtained as a viscous oil and was used without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With triethylamine In diethyl ether at 20 - 23℃; for 24h; | Synthesis of esters and diesters 14-22. General procedure: 1.1 mmol of triethylamine was added to a stirred mixture of 1.0 mmol of metallocene alcohol (7, 8, 12) or 0.45 mmol of ferrocene diol (10, 11) and 1.0 mmol of 4,5-dichloroisothiazole- or 5-arylisoxazole-3-carbonyl chloride in 50 mL of diethyl ether at 20-23°C. The reaction mixture was stirred at that temperature during 24 h. The precipitated triethylamine hydrochloride was filtered off and washed with diethyl ether (5 × 10 mL). The filtrate was washed with 10 % aqueous NaCl and 5 % aqueous NaHCO3. The solvent was removed, and the residue was recrystallized from a benzene-hexane (2 : 1) mixture (14, 15, 19, and 20) or from hexane (16,17, 21, and 22). 3,4,4-Trichloro-1-cymantrenylbut-3-en-1-yl 4,5-dichloroisothiazole-3-carboxylate 18 was obtained as a viscous oil and was used without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With triethylamine In diethyl ether at 20 - 23℃; for 24h; | Synthesis of esters and diesters 14-22. General procedure: 1.1 mmol of triethylamine was added to a stirred mixture of 1.0 mmol of metallocene alcohol (7, 8, 12) or 0.45 mmol of ferrocene diol (10, 11) and 1.0 mmol of 4,5-dichloroisothiazole- or 5-arylisoxazole-3-carbonyl chloride in 50 mL of diethyl ether at 20-23°C. The reaction mixture was stirred at that temperature during 24 h. The precipitated triethylamine hydrochloride was filtered off and washed with diethyl ether (5 × 10 mL). The filtrate was washed with 10 % aqueous NaCl and 5 % aqueous NaHCO3. The solvent was removed, and the residue was recrystallized from a benzene-hexane (2 : 1) mixture (14, 15, 19, and 20) or from hexane (16,17, 21, and 22). 3,4,4-Trichloro-1-cymantrenylbut-3-en-1-yl 4,5-dichloroisothiazole-3-carboxylate 18 was obtained as a viscous oil and was used without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | Stage #1: 1,3,5-trichloro-2,4,6-triazine; 1-ferrocenylmethanol In tetrahydrofuran for 0.5h; Cooling with ice; Stage #2: With dmap In tetrahydrofuran for 8.5h; Reflux; | 2.2. The Procedure for the Preparation of the Target Compound 1 Cyanuric chloride (TCT)(0.184g, 1mmol) was added intoa 50mL one-necked round-bottom flask with 10mL dry THF.The mixture was stirred in a cold bath and ferrocenemethanol(0.864g, 4mmol) in 10mL dry THF was slowly added tothe reaction system using a syringe. The mixture was stirred in the cold bath for 30min. Subsequently, DMAP (0.366g,3mmol) in 10mL dry THF was also slowly added to the reactionsystem using a syringe. The mixture was stirred in thecold bath for an additional 30min. Then, the temperature naturally rose to room temperature and was stirred for 8h.This time, the reaction system was refluxed. After the completion of the reaction indicated by simple TLC analysis, the solvent was evaporated under the reduced pressure, and theresidual was directly purified by column chromatography(EtOAc/Petroleum ether: 5:12:1) to obtain the target compound 1. 0.506g, light yellow solid, yield, 70%, Mp.:199-201 oC, 1H NMR(400MHz, CDCl3) (ppm): 4.73(s, 6H,32H of C5H4), 4.38(s, 6H, 32H of C5H4), 4.15(s, 15H,3C5H5), 4.10(s, 6H, 3CH2); 13C NMR(100MHz, CDCl3) (ppm): 148.7(3C=N), 81.5(6C), 70.4(6C), 68.7(15C),68.5(3C), 42.1(3CH2); ESI-MS(m/e, 100%) 746([M+23]+,100); Anal.calcd. for C36H33N3O3Fe3: N, 5.81; C, 59.75; H,4.56; Found: N, 5.75; C, 59.57 ; H, 4.64 |
70% | With dmap In tetrahydrofuran at 0℃; Reflux; | 1 Example 1 Synthesis of ferrocene derivative containing nitrogen free radicals The cyanuric chloride (TCT)(0.184 g, 1 mmol) and 30 mL of dry tetrahydrofuran were added to a 100 mL round bottom flask,To a stirred solution of 20 mL of ferrocene methanol (0.864 g, 4 mmol) Of the dry tetrahydrofuran solution was slowly added dropwise to the reaction system.After stirring for 30 minutes under ice bath, 10 mL of a solution containing DMAP (0.366 g, 3 mmol)In a dry tetrahydrofuran solution was slowly added dropwise to the reaction system, and the mixture was stirred at room temperature for 5 minutes after stirring for 30 minutes. After the reaction was carried out at room temperature for 5 to 6 hours, the reaction was refluxed. After completion of the reaction, the reaction solution was concentrated under reduced pressure,The residue was separated by column chromatography using (V petroleum ether: V ethyl acetate, 5: 1-2: 1)The mobile phase was eluted to give nitroxyl radical containing ferrocene derivative I, 0.506 g, yield: 70%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 40% 2: 22% 3: 12% 4: 10% | With trifluoroacetic acid In 1,2-dimethoxyethane at 45℃; for 2h; | 12 4.3.7 Reaction of vinyloxymethylferrocene with 1,2,4-triazole A mixture of vinyloxymethylferrocene (242 mg, 1 mmol), 1,2,4-triazole (69 mg, 1 mmol) and CF3CO2H (6 mg, 5 mol %) in dry DME (2 mL) was stirred at 45° for 2 h. After removal of the volatiles, the residue was separated by column chromatography (Al2O3, 1.5×10 cm) using hexane/Et2O (1:1, v/v), then Et2O as the eluent to afford acetal 4 (27 mg, yield 12%), products 10 and 11, and ferrocenylmethanol (21 mg, 10 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With dimanganese decacarbonyl; sodium hydroxide In toluene at 110℃; for 2h; Inert atmosphere; Glovebox; Sealed tube; | |
92% | With C38H36Cl4Ir2N4; caesium carbonate In tert-Amyl alcohol for 12h; Reflux; | 14 Example 14: 3-ferrocen-2-yl-1-phenylpropan-1-one Acetophenone (60 mg, 0.5 mmol),Cat. [Ir] (5.4 mg, 0.005 mmol, 1.0 mol%),Cesium carbonate (33 mg, 0.1 mmol, 0.2 equiv.),Ferrocene methanol (130 mg, 0.6 mmol)And tert-amyl alcohol (1 ml) were successively added to a 5 mL round bottom flask.The reaction mixture was refluxed in air for 12 hours,Cool to room temperature.Rotate the solvent to remove the solvent,The purified title compound was then purified by column chromatography (developing solvent: petroleum ether / ethyl acetate)Yield: 92% |
92% | With C38H37Cl2N3O4Pd; potassium hydroxide In toluene at 115℃; for 6h; |
87% | With bis(μ-chloro)-bis[1,3-di(2-pyridyl)-4,6-dimethylbenzene-N,C(2'),N-iridium chloride]; caesium carbonate In tert-Amyl alcohol for 12h; Reflux; | |
82% | With C16H14IrN2O3; caesium carbonate In tert-Amyl alcohol for 6h; Reflux; | 14 3-Ferrocenyl-1-phenylpropan-1-one Acetophenone (120mg, 1mmol), cat.1 (5.4mg, 0.01mmol, 1.0mol%), cesium carbonate (33mg, 0.1mmol,0.1equiv.), Ferrocene methanol (238mg, 1.1mmol) and tert-amyl alcohol (1ml) were sequentially added to 5mL round bottom flask.After the reaction mixture was refluxed in air for six hours, cooled to room temperature. The solvent is removed by rotary evaporation, then purified by column chromatography (developingOpen solvent: petroleum ether / ethyl acetate) to give pure target compound, yield: 82% |
80% | With [(Cp*IrCl)2(4,4′,6,6′-tetrahydroxy-2,2′-bipyrimidine)][Cl]2; potassium hydroxide In water at 100℃; for 12h; Green chemistry; | |
80% | With [(Cp*IrCl)2(thbpym)][Cl]2; potassium hydroxide In water for 12h; Reflux; | 15 Example 15: 3-(Ferrocenyl)-1-phenyl-1-acetone Ferrocene methanol(108mg, 0.5mmol), acetophenone (78.1mg, 0.65mmol), [(Cp*IrCl)2(thbpym)][Cl]2 (2.5mg, 0.0025mmol, 1mol Ir%), potassium hydroxide (28mg , 0.5mmol, 1equiv), and water (1mL) were sequentially added to a 5mL round bottom flask. After the reaction mixture was refluxed in air for 12 hours, it was cooled to room temperature. The solvent was removed by rotary evaporation, and then the pure target compound was obtained by column chromatography (developing solvent: petroleum ether/ethyl acetate), yield: 80%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With diethylaminomethyl-polystyrene In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 7 Synthesis of an Ether-Linked Ferrocene Silane Example 7 Synthesis of an Ether-Linked Ferrocene Silane This example and the following Examples 8 and 9 describe compounds and methods of the invention for making an AIM-amide-linked sol-gel matrix and corresponding AIE of the invention. Hydroxymethyl ferrocene was reacted with (3-bromopropyl)trimethoxysilane to obtain the silane precursor, as shown in the following reaction scheme: |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With C55H43ClIrNP2; sodium hydroxide In 1,4-dioxane at 110℃; for 36h; Schlenk technique; Inert atmosphere; | 19 example 19 Synthesis of 1-ferrocenyl-3-phenyl-1-propanone To a 10 ml Schlek reaction tube under a high-purity nitrogen atmosphere was added 0.20 mmol of benzoquinoline triphenylphosphine iridium hydrogen (16), lmmol of phenylacetylene, 2.3 mmol of ferrocene methanol, 0.8 mmol of sodium hydroxide and 3 ml of dioxane were charged. The reaction tube was replaced with nitrogen three times and then heated to 110 ° C with an oil bath under magnetic stirring. The reaction was refluxed for 36 hours. The filtrate was concentrated using a rotary evaporator and the remaining residue was purified by chromatography on oil (100 mL). The residue was purified by flash chromatography on silica gel eluting with an oil bath and the bath was cooled to room temperature. Ether as eluent, and separated by silica gel thin layer chromatography to obtain pure product 1-ferrocenyl-3-phenyl-1-propanone in a yield of 96%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Stage #1: 1-ferrocenylmethanol With n-butyllithium In diethyl ether; hexane for 0.0833333h; Inert atmosphere; Stage #2: chloroformic acid ethyl ester In diethyl ether; hexane at 20℃; Inert atmosphere; Stage #3: In diethyl ether; hexane at 20℃; Inert atmosphere; | 4.2 General procedure for generation of carbonates 1a-c. decomposition of carbonates 1a-c General procedure: A solution of n-BuLi (1 eq.) in hexane was added dropwise to a solution of FcCH(R)OH (150mg) and 7 (0.083 eq.) in diethyl ether (10ml). The mixture was stirred for 5min and EtOC(O)Cl was added followed by 5min stirring extra. [If necessary, the solvent may be changed at the moment by removing diethyl ether at 20°C under vacuum to dryness followed by a re-dissolution of the residue in another solvent (10ml)]. The resulting mixture was allowed to stir at 20°C. Periodically, aliquots of the reaction mixture (1.0ml) were taken. Each aliquot was quenched with water (1.0ml) and the products were extracted with diethyl ether (2ml). The organic solution was dried over Na2SO4 and the solvent was evaporated at reduced pressure. The content of ethers 8a-c in the probes was monitored with 1H NMR spectra by a comparison of the integral intensities of the peaks of ether 8 with that ones of the reference compound 7. The decomposition of a carbonate was considered complete when the ratio of the peak intensities mentioned above rested unchanged in the next aliquot (see Fig.1). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67% | With tetrafluoroboric acid In dichloromethane; water regioselective reaction; | General procedure for alkylationof ferrocenylpyrazoles General procedure: To a mixture of 1.0 mmol ferrocenyl alcohol and 1.0 mmolof the corresponding pyrazoles in 1 cm3 of methylenechloride, 0.18 cm3 of 48% aqueous fluoroboric acid(1.0 mmol) was added with vigorous stirring. Stirring wascontinued for 5-10 min after which 10 cm3 of water and10 cm3 of diethyl ether were added. The resulting mixturewas washed with water (2 9 15 cm3) and the organic layerwas separated and dried over CaCl2. The solvent wasremoved in vacuo.1-(Ferrocenylmethyl)-3-ferrocenyl-1H-pyrazole(4a, C24H22Fe2N2)Yield 67%; bronze oil; 1H NMR (400 MHz, CDCl3):d = 7.26 (d, J = 2 Hz, 1H, Pz), 6.27 (d, J = 2 Hz, 1H,Pz), 5.07 (s, 2H, CH2), 4.70 (s, 2H, Fc), 4.30 (s, 2H, Fc),4.27 (s, 2H, Fc), 4.20 (m, 7H, Fc), 4.09 (s, 5H, Fc) ppm;13C NMR (100 MHz, CDCl3): d = 148.8, 128.2, 103.3,84.3, 79.4, 69.4, 68.9, 68.3, 68.2, 68.0, 66.5, 48.6 ppm; MS(70 eV): m/z = 450 (M?, 100). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With tetrafluoroboric acid In dichloromethane; water regioselective reaction; | General procedure for alkylationof ferrocenylpyrazoles General procedure: To a mixture of 1.0 mmol ferrocenyl alcohol and 1.0 mmolof the corresponding pyrazoles in 1 cm3 of methylenechloride, 0.18 cm3 of 48% aqueous fluoroboric acid(1.0 mmol) was added with vigorous stirring. Stirring wascontinued for 5-10 min after which 10 cm3 of water and10 cm3 of diethyl ether were added. The resulting mixturewas washed with water (2 9 15 cm3) and the organic layerwas separated and dried over CaCl2. The solvent wasremoved in vacuo. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | With tetrafluoroboric acid In dichloromethane; water regioselective reaction; | General procedure for alkylationof ferrocenylpyrazoles General procedure: To a mixture of 1.0 mmol ferrocenyl alcohol and 1.0 mmolof the corresponding pyrazoles in 1 cm3 of methylenechloride, 0.18 cm3 of 48% aqueous fluoroboric acid(1.0 mmol) was added with vigorous stirring. Stirring wascontinued for 5-10 min after which 10 cm3 of water and10 cm3 of diethyl ether were added. The resulting mixturewas washed with water (2 9 15 cm3) and the organic layerwas separated and dried over CaCl2. The solvent wasremoved in vacuo.1-(Ferrocenylmethyl)-3-ferrocenyl-1H-pyrazole(4a, C24H22Fe2N2)Yield 67%; bronze oil; 1H NMR (400 MHz, CDCl3):d = 7.26 (d, J = 2 Hz, 1H, Pz), 6.27 (d, J = 2 Hz, 1H,Pz), 5.07 (s, 2H, CH2), 4.70 (s, 2H, Fc), 4.30 (s, 2H, Fc),4.27 (s, 2H, Fc), 4.20 (m, 7H, Fc), 4.09 (s, 5H, Fc) ppm;13C NMR (100 MHz, CDCl3): d = 148.8, 128.2, 103.3,84.3, 79.4, 69.4, 68.9, 68.3, 68.2, 68.0, 66.5, 48.6 ppm; MS(70 eV): m/z = 450 (M?, 100). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With di-isopropyl azodicarboxylate; all-trans-retinoic-acid; triphenylphosphine In tetrahydrofuran at 0℃; Inert atmosphere; | 1 Synthesis and purification of ferrocene carboxylic acid Ferrocene methanol (ferrocenyl methanol, 3mmol), triphenylphosphine (PPh3,1.18g, 4.5mmol), all-trans retinoic acid (ATRA, 3mmol), was dissolved in 20mL of tetrahydrofuran (THF), stir to dissolve, then under nitrogen, was added diisopropyl azodicarboxylate (DIAD, 0.8g, 4.5mmol) under conditions of 0 C . The reaction Thin chromatography (TLC) monitoring process, after the completion of the reaction continued at room temperature for 2 hours. 30 deg C and concentrated in vacuo by rotary evaporation to a thick oil, the product was extracted using silica gel column chromatography (ethyl acetate / petroleum ether = 2: 8 volume ratio) to give the product as the first ferrocene carboxylic acid (FCRA ), 83% yield |
78% | With oxygen at 120℃; for 16h; Green chemistry; | |
77% | With potassium hydroxide In toluene at 120℃; for 24h; | 2.3 General procedure for the dehydrogenation of benzylic alcohols General procedure: Benzylic alcohols (1.0mmol), solid 1a (0.2-2mol %), KOH (2-4 equiv.) and 1.5mL toluene were charged sequentially in a 25mL tube with a magnetic bar. The reaction tube was stirred at 120°C for 12-48h attached with an open bubbler. After the certain reaction time, water (5mL) was added, and the mixture was extracted with diethyl ether (3×5mL). Then the aqueous phase was acidified with HCl (6M) and further extracted with ethyl acetate (3×10mL). The combined ethyl acetate solution was washed with brine (15mL), dried over anhydrous Na2SO4, and evaporated to dryness under reduced pressure, the pure acids was obtained and weighted for calculating the yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | With tetrafluoroboric acid In dichloromethane; water at 20℃; regioselective reaction; | Synthesis of ferrocenylalkyl-2-mercaptobenzoxazoles (general procedure). General procedure: A 48% aqueous solution of tetrafluoroboric acid (0.21 mL, 1.2 mmol) was added to a suspension of ferrocenyl carbinol (1 mmol) and 2mercaptobenzoxazole (1 mmol) in dichloromethane (1 mL) under vigorous stirring. The stirring was continued for 5-15 mL. Then water (10 mL) and diethyl ether (10 mL) were added to the reaction mixture. The resulting mixture was washed with water (2×20 mL), the organic layer was separated and dried with Na2SO4. The solvent was removed under water pump vacuum. 3(Ferrocenylmethyl)benz[d]oxazole-2-thione (1a). Yield 72%. Yellow powder. M.p. 166.8-167.2 °C. Found (%): C, 61.97; H, 4.32; N, 4.04; Fe, 15.96. Calculated (%): C, 61.91; H, 4.33; N, N, 4.01; Fe, 15.99. Rf 0.6 (petroleum ether-ethyl acetate, 3 : 1). MS, m/z (Irel(%)): 349 [M]+ (100). 1H NMR, δ: 4.18 (s, 2 H, C5H4); 4.27 (s, 5 H, C5H5); 4.48 (s, 2 H, C5H4); 5.21 (s, 2 H, CH2); 7.15 (d, 1 H, Het, J = 7.6 Hz); 7.22-7.31 (m, 2 H, Het); 7.32 (d, 1 H, Het, J = 7.6 Hz). 13C NMR, δ: 45.66 (CH2), 68.74 (C5H4), 68.96 (C5H5), 69.69 (C5H4), 80.29 (ipsoC5H4), 109.81 (Het), 110.34 (Het), 124.17 (Het), 124.75 (Het), 131.51 (Het), 147.05 (Het), 180.06 (C=S). |
Yield | Reaction Conditions | Operation in experiment |
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92% | With ammonium cerium (IV) nitrate In nitromethane at 20℃; Inert atmosphere; | 2.3. General procedure for the reactions of ferrocenyl alcohols 1, 2 withmercaptocarboranes 3, 4 and thioglycolic acid General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With ammonium cerium (IV) nitrate In nitromethane at 20℃; Inert atmosphere; | 2.3. General procedure for the reactions of ferrocenyl alcohols 1, 2 withmercaptocarboranes 3, 4 and thioglycolic acid General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | With ammonium cerium (IV) nitrate In nitromethane at 20℃; Inert atmosphere; | 2.3. General procedure for the reactions of ferrocenyl alcohols 1, 2 withmercaptocarboranes 3, 4 and thioglycolic acid General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | With ammonium cerium (IV) nitrate In nitromethane at 20℃; Inert atmosphere; | 2.4. General procedure for the reaction of ferrocenyl alcohols 1, 2 withaminocarborane (12) General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and 3-amino-o-carborane hydrochloride (2.0 mmol) in dry MeNO2 (5mL) CAN (87 mg, 0.16 mmol, 0.8 mol%) was added. The resultingmixture was stirred at room temperature until TLC analysisrevealed complete disappearance of starting alcohol 1 or 2 (usually3-4 h). Then EtOAc (10 mL) was added to a reaction mixture andresulting solution was washed repeatedly with water, dried withanhydrous Na2SO4, filtered and the solvents were evaporated invacuo. The remained product was treated with CH2Cl2 (50 ml),passed through a silica gel layer (2.0 cm) on the filter to give correspondingproducts 15, 17 after the evaporation of volatiles atreduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | With ammonium cerium (IV) nitrate In nitromethane at 20℃; Inert atmosphere; | 2.3. General procedure for the reactions of ferrocenyl alcohols 1, 2 withmercaptocarboranes 3, 4 and thioglycolic acid General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82.8% | (3) Chlorinated ferrocene methane synthesis: under the protection of the helium, the ferrocene methanol (250 mg, 1 . 16 mmol) dissolved into dichloromethane (20 ml) in, then the oxalyl (6 drops, excess) into the wherein after then completing, in helium under the protection of the stirring 4 h, after the reaction, the solvent is removed by reduced pressure distillation, for fixing the residue water (10 ml) flushing.(4) Containing ferrocene group of the carbamate compound synthesis: amount taking 0. 6 Ml (1.0 mmol) is dissolved in carbon disulfide and 5 ml of ethanol, measuring the 2.4 g (1.0 mmol) di-n-octyl amine and 1.4 ml (i. the 0 1.0 mmol) triethylamine are added 1 a 50 ml three flasks; under the condition of the ice slowly dripping into carbon bisulfide ethanol solution, stirring 1 h; the removal of the ice bath, in the continuing stirring at room temperature 2 h; then adding 0.25 g (1.0 mmol) chloro ferrocene methane ethanol solution of 10 ml, to control the temperature 5 C following reaction 1 h, then raising the stirring to reflux 2 h; TLC monitoring the reaction, solvent system as developing solvent (benzene and acetone of volume ratio of 1:1); boil off ethanol, adding anhydrous ethyl ether 20 ml, filtering out the deposit, the filtrate water washing 3 times, then the molecular sieve drying, filtering, the steamed ethyl ether to obtain yellow solid, yield 82. 8%, Melting point 100 - 102 C. |
Yield | Reaction Conditions | Operation in experiment |
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68% | With acetic acid at 60℃; for 9h; | 1.1. Synthesis of 1-ferrocenylmethyl(2-methylimidazole) FcImCH3 The general procedure described by Pan et.al. ADDIN EN.CITE He201353[46]535317He, PanDu, YufengWang, ShuzhanCao, ChangshengWang, XiaojunPang, GuangshengShi, YanhuiSynthesis, Structure, and Reactivity of Ferrocenyl-NHC Palladium ComplexesZeitschrift für anorganische und allgemeine ChemieZeitschrift für anorganische und allgemeine Chemie1004-1010639620131521-3749[1] was used to synthesize ferrocenyl(2-methyl imidazole). Briefly, ferrocenemethanol (1 mM) and 2-methyl-1H-imidazole (1.1 mM) were refluxed in acetic acid for 9 hrs at 60 °C. The reaction was monitored on preparative TLC. The product was neutralized with 50% KOH in distilled water to remove the acetic acid. The residue was chromatographed on a packed column with CH2Cl2/MeOH (4:1) eluent. Yield: 68% (205.0 mg,), oily liquid Rf = 0.64; IR (cm-1) 703.82, 730.95, 896.20, 1264.38, 1422.24, 3055; 1H-NMR spectra (CDCl3) 2.27 (3H, CH3), 4.12 (9H, s, Fc), 4.73 (2H, s, CH2) 6.73 (1H, s, imidazole), 6.81 (1H, s, imidazole); 13C NMR spectra (CDCl3): d (ppm) = 13.13, 23.75, 29.69, 45.84, 68.79, 77.30, 82.78, 118.99, 126.43, 128.799, 130.87, 143.94. LC-MS (C15H16FeN2) EI: [M]+ m/z calc. 280.00501, [M + Cl-] found 315.98011. |
Yield | Reaction Conditions | Operation in experiment |
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71% | With acetic acid; at 60℃; for 9h; | General procedure: The general procedure described by Pan et.al. ADDIN EN.CITE He201353[46]535317He, PanDu, YufengWang, ShuzhanCao, ChangshengWang, XiaojunPang, GuangshengShi, YanhuiSynthesis, Structure, and Reactivity of Ferrocenyl-NHC Palladium ComplexesZeitschrift fuer anorganische und allgemeine ChemieZeitschrift fuer anorganische und allgemeine Chemie1004-1010639620131521-3749[1] was used to synthesize ferrocenyl(2-methyl imidazole). Briefly, ferrocenemethanol (1 mM) and 2-methyl-1H-imidazole (1.1 mM) were refluxed in acetic acid for 9 hrs at 60 C. The reaction was monitored on preparative TLC. The product was neutralized with 50% KOH in distilled water to remove the acetic acid. The residue was chromatographed on a packed column with CH2Cl2/MeOH (4:1) eluent. |
Yield | Reaction Conditions | Operation in experiment |
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83% | With acetic acid at 60℃; for 9h; | 1.1. Synthesis of 1-ferrocenylmethyl(2-methylimidazole) FcImCH3 General procedure: The general procedure described by Pan et.al. ADDIN EN.CITE He201353[46]535317He, PanDu, YufengWang, ShuzhanCao, ChangshengWang, XiaojunPang, GuangshengShi, YanhuiSynthesis, Structure, and Reactivity of Ferrocenyl-NHC Palladium ComplexesZeitschrift für anorganische und allgemeine ChemieZeitschrift für anorganische und allgemeine Chemie1004-1010639620131521-3749[1] was used to synthesize ferrocenyl(2-methyl imidazole). Briefly, ferrocenemethanol (1 mM) and 2-methyl-1H-imidazole (1.1 mM) were refluxed in acetic acid for 9 hrs at 60 °C. The reaction was monitored on preparative TLC. The product was neutralized with 50% KOH in distilled water to remove the acetic acid. The residue was chromatographed on a packed column with CH2Cl2/MeOH (4:1) eluent. |
Yield | Reaction Conditions | Operation in experiment |
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64% | With tetrafluoroboric acid; In dichloromethane; water; at 20℃; for 0.0833333h; | General procedure: To a mixture of 1.0mmol of ferrocene alcohol and 1.0mmol of the corresponding nitroimidazole in 1.0ml of methylene dichloride, 0.18ml of 45% aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5min then diethyl ether (15ml), the same amount of cold water, and 5-10mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture, the organic solution was separated, washed with cold water (3×15ml), the solvents were removed in vacuo, and the residue was dried over CaCl2 in a desiccator. |
Yield | Reaction Conditions | Operation in experiment |
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43% | With tetrafluoroboric acid In dichloromethane; water at 20℃; for 0.0833333h; regiospecific reaction; | 2.2 General procedure General procedure: To a mixture of 1.0mmol of ferrocene alcohol and 1.0mmol of the corresponding nitroimidazole in 1.0ml of methylene dichloride, 0.18ml of 45% aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5min then diethyl ether (15ml), the same amount of cold water, and 5-10mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture, the organic solution was separated, washed with cold water (3×15ml), the solvents were removed in vacuo, and the residue was dried over CaCl2 in a desiccator. |
Yield | Reaction Conditions | Operation in experiment |
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74% | Stage #1: 1-ferrocenylmethanol; methyllithium In diethyl ether at 0℃; for 0.25h; Inert atmosphere; Schlenk technique; Stage #2: 2,5-furandicarbonyl dichloride In diethyl ether at -78 - 25℃; for 18h; Inert atmosphere; Schlenk technique; | 6.1.2. General procedure for the preparation of 6a-c General procedure: To FcCH2OH (4) (250 mg, 1.16 mmol) dissolved in 15 mL ofdiethyl ether, 0.72 mL of MeLi (1.60 M, 1.16 mmol) was added insingle portion at 0 °C. The resulting yellow suspension was stirredat this temperature for 15 min. The resulting reaction solution wascooled to -78 °C and treated with a solution of the respectivedichalcogenophene acid chloride (0.58 mmol) in 10 mL of diethylether dropwise over 10 min. The reaction mixture was slowlywarmed to ambient temperature and stirring was continued overnight.After filtration through a pad of Celite, all volatiles wereremoved under reduced pressure to give a yellow solid. This solidwas washed twice with hexane (each 10 mL) and dried in vacuum.Crystallization of the solid with a mixture of chloroform-hexane(ratio 3:1, v/v) at -18 °C afforded yellow crystals of the title compounds6a-c.2,5-(FcCH2OC(O))2-cC4H2O (6a). Yield: 236 mg (0.43 mmol, 74%based on 4). Anal. Calc. for C28H24Fe2O5 (552.18 g/mol): C, 60.90; H,4.38. Found C, 61.17; H, 4.61%. Mp: 149 °C (decomp.). IR (NaCl,cm-1): νCO 1712 s. 1H NMR (CDCl3) δ, ppm: 7.16 (s, 2H, C4H2O),5.13 (s, 4H, CH2), 4.33 (pt, JHH = 1.8 Hz, 4H, C5H4), 4.20 (pt, JHH =1.8 Hz, 4H, C5H4), 4.18 (s, 10 H, C5H5). 13C {1H} NMR (CDCl3) δ,ppm: 158.03 (CO), 146.94 (Ci-C4H2O), 118.56 (C4H2O), 80.64 (Ci-C5H4), 70.09 (C5H4), 69.12 (C5H4), 68.77 (C5H5), 63.95 (CH2). HRESIMS (positive ion mode) m/z: Calcd. for C28H24Fe2O5 (M)+552.0326, found 552.0318. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | Stage #1: 1-ferrocenylmethanol; methyllithium In diethyl ether at 0℃; for 0.25h; Inert atmosphere; Schlenk technique; Stage #2: thiophene-2,5-dicarbonyl dichloride In diethyl ether at -78 - 25℃; for 18h; Inert atmosphere; Schlenk technique; | 6.1.2. General procedure for the preparation of 6a-c General procedure: To FcCH2OH (4) (250 mg, 1.16 mmol) dissolved in 15 mL ofdiethyl ether, 0.72 mL of MeLi (1.60 M, 1.16 mmol) was added insingle portion at 0 °C. The resulting yellow suspension was stirredat this temperature for 15 min. The resulting reaction solution wascooled to -78 °C and treated with a solution of the respectivedichalcogenophene acid chloride (0.58 mmol) in 10 mL of diethylether dropwise over 10 min. The reaction mixture was slowlywarmed to ambient temperature and stirring was continued overnight.After filtration through a pad of Celite, all volatiles wereremoved under reduced pressure to give a yellow solid. This solidwas washed twice with hexane (each 10 mL) and dried in vacuum.Crystallization of the solid with a mixture of chloroform-hexane(ratio 3:1, v/v) at -18 °C afforded yellow crystals of the title compounds6a-c. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | Stage #1: 1-ferrocenylmethanol; methyllithium In diethyl ether at 0℃; for 0.25h; Inert atmosphere; Schlenk technique; Stage #2: selenophene-2,5-dicarbonyl dichloride In diethyl ether at -78 - 25℃; for 18h; Inert atmosphere; Schlenk technique; | 6.1.2. General procedure for the preparation of 6a-c General procedure: To FcCH2OH (4) (250 mg, 1.16 mmol) dissolved in 15 mL ofdiethyl ether, 0.72 mL of MeLi (1.60 M, 1.16 mmol) was added insingle portion at 0 °C. The resulting yellow suspension was stirredat this temperature for 15 min. The resulting reaction solution wascooled to -78 °C and treated with a solution of the respectivedichalcogenophene acid chloride (0.58 mmol) in 10 mL of diethylether dropwise over 10 min. The reaction mixture was slowlywarmed to ambient temperature and stirring was continued overnight.After filtration through a pad of Celite, all volatiles wereremoved under reduced pressure to give a yellow solid. This solidwas washed twice with hexane (each 10 mL) and dried in vacuum.Crystallization of the solid with a mixture of chloroform-hexane(ratio 3:1, v/v) at -18 °C afforded yellow crystals of the title compounds6a-c. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With tetrafluoroboric acid In dichloromethane; water at 20℃; regioselective reaction; | General Procedure General procedure: To a mixture of 1.0 mmol of ferrocenylcarbinol and 1.0 mmol of the corresponding heterocycle in 1.0 ml of methylene dichloride, 0.18 ml of 45 % aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5 min then Et2O (15 ml), the same amount of cold water, and 5-10 mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture the organic solution was separated, washed with cold water (3×15 ml), the solvent was removed and the residue was dried over CaCl2. All types of products (pyrrolidine as well as imidazolidine and thiazolidine derivatives) were equally purified, namely by column chromatography (silica, eluent hexane EtOAc 3:1), and solids obtained after chromatography were crystalized from ethanol.1-(1-Ferrocenylmethyl)pyrrolidine-2-thione (5). (85%); orange powder; mp 104.8 - 105.6o. 1H NMR (400 MHz, CDCl3) δ (ppm): 2.02 (m, 2, 2), 2.61 (m, 2, 2), 3.90 (m, 2, 2), 4.12 (s, 2H, Fc), 4.14 (s, 2, 2), 4.13 (s, 5H, Fc), 4.25 (s, 2H, Fc). 13C NMR (100 MHz, CDCl3) δ (ppm): 19.8 (CH2), 45.2 (CH2), 49.3 (CH2), 52.1 (CH), 66.0 (C5H4), 67.6 (C5H4), 68.8 (C5H4), 68.9 (C5H4), 69.1 (C5H5), 86.9 (ipso-C5H4), 200.1 (C=S) Calc. for C15H17FeNS: 61.22; H, 5.74; N, 4.69; Fe, 18.67; S, 10.72. Found: C, 60.21; H, 5.73; Fe, 18.66; N, 4.68; S, 10.72. EI/MS, m/z (RI%): 299 [M]+ (46). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
57% | With tetrafluoroboric acid In dichloromethane; water at 20℃; regioselective reaction; | General Procedure General procedure: To a mixture of 1.0 mmol of ferrocenylcarbinol and 1.0 mmol of the corresponding heterocycle in 1.0 ml of methylene dichloride, 0.18 ml of 45 % aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5 min then Et2O (15 ml), the same amount of cold water, and 5-10 mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture the organic solution was separated, washed with cold water (3×15 ml), the solvent was removed and the residue was dried over CaCl2. All types of products (pyrrolidine as well as imidazolidine and thiazolidine derivatives) were equally purified, namely by column chromatography (silica, eluent hexane EtOAc 3:1), and solids obtained after chromatography were crystalized from ethanol. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With tetrafluoroboric acid In dichloromethane; water at 20℃; regioselective reaction; | General Procedure General procedure: To a mixture of 1.0 mmol of ferrocenylcarbinol and 1.0 mmol of the corresponding heterocycle in 1.0 ml of methylene dichloride, 0.18 ml of 45 % aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5 min then Et2O (15 ml), the same amount of cold water, and 5-10 mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture the organic solution was separated, washed with cold water (3×15 ml), the solvent was removed and the residue was dried over CaCl2. All types of products (pyrrolidine as well as imidazolidine and thiazolidine derivatives) were equally purified, namely by column chromatography (silica, eluent hexane EtOAc 3:1), and solids obtained after chromatography were crystalized from ethanol. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With caesium carbonate; In dichloromethane; at 20℃; | Compound hydroxymethylferrocene S5 (1 g, 4.63 mmol),1-chloro-3,5-di-p-chlorobenzoyloxy-2-deOxygen-D-ribose S6 (1.79 g, 4.17 mmol),Anhydrous Cs2CO3 (2.60 g, 7.87 mmol) was dissolved in anhydrous dichloromethane.Stir at room temperature overnight, and vortex off the solvent.Silica gel column chromatography(Dichloromethane: methanol = 95:5) was purified to give an orange-red compound S7 (yield: 80%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With [Ni(dmpymt)2]6; potassium hydroxide In toluene at 100℃; for 24h; Schlenk technique; Inert atmosphere; chemoselective reaction; | |
78% | With [Co(N,N'-bis(α-pyridyl)-2,6-diaminopyridine)Cl2]; sodium hydroxide In toluene at 120℃; for 24h; Inert atmosphere; Molecular sieve; Schlenk technique; | 4.9. Typical procedure for syntheses of α-alkylated ketones General procedure: Under an N2 atmosphere, a mixture of secondary alcohol (0.5 mmol), primary alcohol (0.6 mmol), 1a (5 mol %), NaOH (0.1 mmol), 4 Å molecular sieve (0.6 g), and toluene (1.5 mL) was added into a 25 mL Schlenk tube equipped with a stirring bar. The mixture was heated to 120 °C under a slow and steady N2 flow for 24 h. After cooling to ambient temperature, 6 mL water was added and the aqueous solution extracted with ethyl acetate (3 x 5 mL). The combined extracts were dried over anhydrous Na2SO4, and concentrated under reduced pressure. The crude product purified on a short flash chromatography column. |
72% | With C16H13MnN5O3(1+)*Br(1-); sodium hydroxide In tert-Amyl alcohol at 110℃; for 6h; Green chemistry; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | Stage #1: 1-ferrocenylmethanol With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Inert atmosphere; Stage #2: 1-bromomethyl-4-bromobenzene In tetrahydrofuran at 60℃; Inert atmosphere; | S5 To a solution of ferrocenylmethanol (1.62 g, 7.5 mmol) in dry THF (15mL), NaH (0.45 g) were added slowly at 0 °C. After stirring for 0.5 h,1-bromo-4-(bromomethyl)benzene (1.88 g, 7.5 mmol) in THF (10 mL) wasadded dropwise and the reaction mixture was stirred overnight at 60 °C. Thereaction mixture was quenched with saturated aq. NH4Cl (50 mL) at 0 °C andextracted with CH2Cl2. The organic extracts were washed with brine, dried overanhydrous Na2SO4 and concentrated under reduced pressure. The residue waspurified by column chromatography to afford a yellow solid (2.25 g, 78%). 1HNMR (CDCl3, 400 Hz, δ/ppm) 7.47 (dt, J1 = 8.4 Hz, J2 = 2 Hz, 2H,), 7.21 (d, J= 8.4 Hz, 2H), 4.45 (s, 2H), 4.32 (s, 2H), 4.24 (t, J = 1.6 Hz, 2H), 4.17 (t, J =1.6 Hz, 2H), 4.12 (s, 5H); 13C NMR (CDCl3, 100 Hz, δ/ppm) 137.6, 131.4,129.3, 121.3, 83.1, 70.8, 69.4, 68.6, 68.5, 68.4. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 33.3% 2: 31% | With potassium hydroxide In ethanol; water at 75 - 95℃; | General procedure for the synthesisof alkylferrocenecarboxylic acid (3a-d) and alkyl(hydroxymethyl)ferrocene derivatives (4a-d) General procedure: A 100-ml round-bottom flask was equipped with a heatingoil bath, magnetic stirrer and a reflux condenser. Alkylferrocenecarboxaldehydederivatives (2a-d) (45 mmol)dissolved in water (60 ml) and ethanol (20 ml) and KOH(750 mmol) was added to this solution. The reaction mixturewas stirred overnight at 75 °C. Then, reflux condenserwas removed and distillation condenser was replaced. The mixture was stirred at 95 °C for 24 h that duringthe reaction and slowly the ethanol was removed fromthe reaction mixture. At the end of the reaction residuewas extracted with dichloromethane. The organic layerincluding unreacted alkylferrocenecarboxaldehyde andalkyl(Hydroxymethyl)ferrocene derivatives (4a-d) wasdried over MgSO4and isolated by column chromatographyusing EtOAc/hexane 1:9 as eluent. The aqueous layer wasacidified with diluted HCl up to pH 5 and was extractedwith dichloromethane. The organic layer including alkylferrocenecarboxylicacid (3a-d) was dried over MgSO4and the solvent was evaporated under reduced pressure.The products were obtained sufficient pure. Ferrocenecarboxylic acid (3a)From 9.63 g (45 mmol) of 2a, yellow solid product 3a wasobtained. Yield: 3.45 g (15 mmol) 33.3%; yellow solid; m.p.191-192 °C [27] 190 °C.FT-IR (KBr): 3446-3110 (O-H,Acidic), 3110 (C-H, Aromatic), 1650 (C=O), 1519-1467(C=C), 507 (Fe-Cp) cm-1. 1H NMR (400 MHz, CDCl3):δ = 4.86 (s, 2H, Cp), 4.47 (s, 2H, Cp), 4.26 (s, 5H, Cp).Hydroxymethyl ferrocene (4a)From 9.63 g (45 mmol) of 2a, yellow solid was purified bychromatography on SiO2(hexanes/EtOAc = 9:1; Rf = 0.52)to afford target product 4a. Yield: 3.02 g (14 mmol) 31%;yellow solid; m.p. 80-81 °C [28] 81-82 °C. FT-IR (KBr):3446-3085 (O-H, Alcoholic), 3085 (C-H, Aromatic), 2927,2855 (C-H, Aliphatic), 1524-1462 (C=C), 992 (C-O), 507(Fe-Cp) cm-1. 1H NMR (400 MHz, CDCl3):δ = 4.27 (s, 2H,CH2), 4.15-4.23 (m, 4H, Cp), 4.12 (s, 5H, Cp), 1.68 (br,1H, OH). |
Yield | Reaction Conditions | Operation in experiment |
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60% | Stage #1: 1-ferrocenylmethanol With n-butyllithium In diethyl ether; hexane at 0 - 20℃; for 16h; Inert atmosphere; Schlenk technique; Stage #2: N,N-dimethyl-formamide In diethyl ether; hexane at 0 - 20℃; for 2h; Inert atmosphere; Schlenk technique; Stage #3: With water In diethyl ether; hexane Inert atmosphere; Schlenk technique; | Racemic-1-formyl-2-hydroxymethyl ferrocene Under an atmosphere of N2, hydroxymethyl ferrocene (0.188 g, 0.87 mmol) was dissolved in anhydrous Et2O (10 ml) and cooled to 0 °C via an ice bath. n-BuLi (1.20 ml, 1.91 mmol, 1.6 M in n-Hexanes) was subsequently added dropwise and the yellow mixture warmed to RT. After 16 hours, the temperature was brought down to 0 °C via an ice bath and anhydrous DMF (0.14 ml, 1.74 mmol) was added dropwise. The orange mixture was warmed to RT and stirred for an additional 2 hours before H2O (20 ml) was added dropwise. The organic layer was separated, and the resultant aqueous layer extracted with DCM (3 x 20 ml). The organic layers were then combined, dried and concentrated via rotary evaporation in vacuo. The crude oil was purified over silica gel (DCM to 10 DCM : 1 Et2O) to afford racemic-1-formyl-2-hydroxymethyl ferrocene (60% yield) as a deep orange oil. 1H NMR (CDCl3, 300 MHz): δ 3.90 (s, 1H, -CH2OH), 4.28 (s, 5H, Cp), 4.43 - 4.61 (m, 3H, -CH2OH and Cp), 4.61 - 4.76 (m, 2H, Cp), 9.93 (s, 1H, -CHO). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
62% | With pyridine; Dimethyl oxalate; aluminum (III) chloride; 1,1'-bis-(diphenylphosphino)ferrocene; nickel(II) bromide dimethoxyethane; manganese; [1,1'-bis(diphenylphosphino)ferrocene]nickel(II) chloride In N,N-dimethyl-formamide at 80℃; for 30h; Inert atmosphere; Glovebox; | 10 In a glove box filled with inert gas, add nickel bromide (II) diethylene glycol dimethyl ether complex (7.1 mg, 0.02 mmol) to a clean and dry reaction tube in sequence,1,1'-bis(diphenylphosphine)ferrocene (11.1mg, 0.02mmol), 1,10-phenanthroline (3.6mg, 0.02mmol), pyridine (1.6mg, 0.02mmol), trichloride Aluminum (2.7mg, 0.02mmol), dimethyl oxalate (42.5mg, 0.36mmol), manganese powder (33.2mg, 0.6mmol), then indole-7-methanol (29.4mg, 0.2mmol) and 4 -(Trifluoromethanesulfonyloxy)methyl benzoate (85.2mg, 0.3mmol) in DMF (1mL) solution is injected into the reaction tube, plugged with the flip plug, taken out from the glove box, under inert gas protection, Reacted at 80°C for 30h. After the reaction, it was quenched with water, extracted with ethyl acetate (30mL×3), dried over anhydrous sodium sulfate, then filtered and concentrated. The concentrate was subjected to silica gel column chromatography (200300 mesh silica gel, The eluent is petroleum ether: ethyl acetate = 20mL: 1mL), that is,Methyl 4-((ferrocenyl)methyl)benzoate. (Light yellow oily liquid, 41.1mg, yield 62%). |
62% | With pyridine; Dimethyl oxalate; aluminum (III) chloride; 1,1'-bis-(diphenylphosphino)ferrocene; manganese; 1,10-Phenanthroline; nickel(II) bromide 2-methoxyethyl ether complex In N,N-dimethyl-formamide at 80℃; for 30h; Inert atmosphere; Sealed tube; chemoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
41% | With trifluoromethylsulfonic anhydride In dimethyl sulfoxide; N,N-dimethyl-formamide at 20℃; for 12h; Inert atmosphere; | 48 Take ferrocene methanol (43.2mg, 0.2mmol) and diphenylphosphorus oxide (101.0mg, 0.5mmol) into a 10mL reaction tube, use a double-row tube to replace the air in the reaction tube with nitrogen, replace it three times, and then Trifluoromethanesulfonic anhydride (56.4 mg, 0.4 mmol), dimethyl sulfoxide (15.6 mg, 0.4 mmol) and 2.0 mL of N,N-dimethylformamide were added, and the reaction was allowed to react at room temperature for 12 hours. After the reaction, it was quenched by adding water, extracted with ethyl acetate 3 times, and the organic phase was concentrated. Using the mixture of petroleum ether and ethyl acetate with a volume ratio of 3:1 as the eluent, the product ferrocene methyl was obtained by column chromatography. Diphenyl phosphate, the yield was 41%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | With sodium t-butanolate In toluene at 150℃; for 36h; Sealed tube; | General procedure for NaOtBu-catalyzed esterification ofamides. General procedure: To a dry 35 mL sealed tube with a stir bar, amide (0.5 mmol), NaOtBu (0.1 mmol), phenol/alcohol (1.0 mmol) and toluene (5.0 mL) were added. After sealed with a Teflon-lined cap, the reaction mixture was stirred at 150 °C for 24 h. Then the mixture was cooled to room temperature and quenched with H2O (5.0 mL). The mixture was separated and extracted with ethyl acetate (EA) (15 mL×3). The combined organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography with ethyl acetate/petroleum ether to give the desired product. More experimental details and characterizations are available in the Supporting Information online. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | With sodium t-butanolate In toluene at 150℃; for 36h; Sealed tube; | General procedure for NaOtBu-catalyzed esterification ofamides. General procedure: To a dry 35 mL sealed tube with a stir bar, amide (0.5 mmol), NaOtBu (0.1 mmol), phenol/alcohol (1.0 mmol) and toluene (5.0 mL) were added. After sealed with a Teflon-lined cap, the reaction mixture was stirred at 150 °C for 24 h. Then the mixture was cooled to room temperature and quenched with H2O (5.0 mL). The mixture was separated and extracted with ethyl acetate (EA) (15 mL×3). The combined organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography with ethyl acetate/petroleum ether to give the desired product. More experimental details and characterizations are available in the Supporting Information online. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
52% | With sodium t-butanolate In toluene at 150℃; for 36h; Sealed tube; | General procedure for NaOtBu-catalyzed esterification ofamides. General procedure: To a dry 35 mL sealed tube with a stir bar, amide (0.5 mmol), NaOtBu (0.1 mmol), phenol/alcohol (1.0 mmol) and toluene (5.0 mL) were added. After sealed with a Teflon-lined cap, the reaction mixture was stirred at 150 °C for 24 h. Then the mixture was cooled to room temperature and quenched with H2O (5.0 mL). The mixture was separated and extracted with ethyl acetate (EA) (15 mL×3). The combined organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography with ethyl acetate/petroleum ether to give the desired product. More experimental details and characterizations are available in the Supporting Information online. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
51% | With sodium t-butanolate In toluene at 150℃; for 36h; Sealed tube; | General procedure for NaOtBu-catalyzed esterification ofamides. General procedure: To a dry 35 mL sealed tube with a stir bar, amide (0.5 mmol), NaOtBu (0.1 mmol), phenol/alcohol (1.0 mmol) and toluene (5.0 mL) were added. After sealed with a Teflon-lined cap, the reaction mixture was stirred at 150 °C for 24 h. Then the mixture was cooled to room temperature and quenched with H2O (5.0 mL). The mixture was separated and extracted with ethyl acetate (EA) (15 mL×3). The combined organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography with ethyl acetate/petroleum ether to give the desired product. More experimental details and characterizations are available in the Supporting Information online. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | With sodium t-butanolate In toluene at 35℃; for 15h; Sealed tube; | General procedure for NaOtBu-catalyzed esterification ofamides. General procedure: To a dry 35 mL sealed tube with a stir bar, amide (0.5 mmol), NaOtBu (0.1 mmol), phenol/alcohol (1.0 mmol) and toluene (5.0 mL) were added. After sealed with a Teflon-lined cap, the reaction mixture was stirred at 150 °C for 24 h. Then the mixture was cooled to room temperature and quenched with H2O (5.0 mL). The mixture was separated and extracted with ethyl acetate (EA) (15 mL×3). The combined organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography with ethyl acetate/petroleum ether to give the desired product. More experimental details and characterizations are available in the Supporting Information online. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
45% | Stage #1: benzamidine monohydrochloride With potassium <i>tert</i>-butylate In toluene for 0.333333h; Inert atmosphere; Glovebox; Schlenk technique; Stage #2: 1-ferrocenylmethanol; 1-ferrocenylethanol With C45H36ClNOP2Ru In toluene at 130℃; for 24h; Inert atmosphere; Glovebox; Schlenk technique; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
53% | Stage #1: succinic acid anhydride; 11-O-nitro-azithromycin With dmap In dichloromethane at 20℃; Stage #2: 1-ferrocenylmethanol With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; | 33 Synthesis of 2’-(succinyl-1-hydroxymethylferrocene)-11-nitro-Azithromycin Compound E-10 (200 mg, 0.25 mmol) was dissolved in dry dichloromethane (5 mL). To this was added subsequently, 4-dimethylaminopyridine (4-DMAP, 3 mg, 0.25 mmol.0.1 eq.) and succinic anhydride (28 mg, 0.28 mmol). The reaction was stirred overnight at room temperature. The solvent was removed in vacuo and the resulting white amorphous foam was used directly for the next step. Fresh dry dichloromethane (5 mL) was added to the resulting foam, followed by 1- Hydroxy-methylferrocene (60 mg, 0.28 mmol, 1.1 eq.). The reaction was cooled to 0 oC and to this was added EDCI (96 mg, 0.5 mmol, 2 eq.). The reaction was allowed to progressively warm to room temperature where it was stirred overnight. Additional dichloromethane (20 mL) was added and washed several times with saturated aqueous ammonium chloride, brine (2x), dried under anhydrous Na2SO4 and the solvent removed in vacuo. The resulting crude product was purified by chromatography with a gradient starting at 10 % of acetone in cyclohexane (0.2% Et3N) yields 150 mg of the desired product (53%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
68% | With 15-crown-5; (1-(2-(2,3-diisopropyl-1-methylguanidino)ethyl)-3-mesityl-1,3-dihydro-2H-imidazol-2-ylidene)copper(I) chloride; hydrogen; sodium t-butanolate In 1,4-dioxane at 60℃; for 24h; Inert atmosphere; |
Tags: 1273-86-5 synthesis path| 1273-86-5 SDS| 1273-86-5 COA| 1273-86-5 purity| 1273-86-5 application| 1273-86-5 NMR| 1273-86-5 COA| 1273-86-5 structure
Precautionary Statements-General | |
Code | Phrase |
P101 | If medical advice is needed,have product container or label at hand. |
P102 | Keep out of reach of children. |
P103 | Read label before use |
Prevention | |
Code | Phrase |
P201 | Obtain special instructions before use. |
P202 | Do not handle until all safety precautions have been read and understood. |
P210 | Keep away from heat/sparks/open flames/hot surfaces. - No smoking. |
P211 | Do not spray on an open flame or other ignition source. |
P220 | Keep/Store away from clothing/combustible materials. |
P221 | Take any precaution to avoid mixing with combustibles |
P222 | Do not allow contact with air. |
P223 | Keep away from any possible contact with water, because of violent reaction and possible flash fire. |
P230 | Keep wetted |
P231 | Handle under inert gas. |
P232 | Protect from moisture. |
P233 | Keep container tightly closed. |
P234 | Keep only in original container. |
P235 | Keep cool |
P240 | Ground/bond container and receiving equipment. |
P241 | Use explosion-proof electrical/ventilating/lighting/equipment. |
P242 | Use only non-sparking tools. |
P243 | Take precautionary measures against static discharge. |
P244 | Keep reduction valves free from grease and oil. |
P250 | Do not subject to grinding/shock/friction. |
P251 | Pressurized container: Do not pierce or burn, even after use. |
P260 | Do not breathe dust/fume/gas/mist/vapours/spray. |
P261 | Avoid breathing dust/fume/gas/mist/vapours/spray. |
P262 | Do not get in eyes, on skin, or on clothing. |
P263 | Avoid contact during pregnancy/while nursing. |
P264 | Wash hands thoroughly after handling. |
P265 | Wash skin thouroughly after handling. |
P270 | Do not eat, drink or smoke when using this product. |
P271 | Use only outdoors or in a well-ventilated area. |
P272 | Contaminated work clothing should not be allowed out of the workplace. |
P273 | Avoid release to the environment. |
P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
P281 | Use personal protective equipment as required. |
P282 | Wear cold insulating gloves/face shield/eye protection. |
P283 | Wear fire/flame resistant/retardant clothing. |
P284 | Wear respiratory protection. |
P285 | In case of inadequate ventilation wear respiratory protection. |
P231 + P232 | Handle under inert gas. Protect from moisture. |
P235 + P410 | Keep cool. Protect from sunlight. |
Response | |
Code | Phrase |
P301 | IF SWALLOWED: |
P304 | IF INHALED: |
P305 | IF IN EYES: |
P306 | IF ON CLOTHING: |
P307 | IF exposed: |
P308 | IF exposed or concerned: |
P309 | IF exposed or if you feel unwell: |
P310 | Immediately call a POISON CENTER or doctor/physician. |
P311 | Call a POISON CENTER or doctor/physician. |
P312 | Call a POISON CENTER or doctor/physician if you feel unwell. |
P313 | Get medical advice/attention. |
P314 | Get medical advice/attention if you feel unwell. |
P315 | Get immediate medical advice/attention. |
P320 | |
P302 + P352 | IF ON SKIN: wash with plenty of soap and water. |
P321 | |
P322 | |
P330 | Rinse mouth. |
P331 | Do NOT induce vomiting. |
P332 | IF SKIN irritation occurs: |
P333 | If skin irritation or rash occurs: |
P334 | Immerse in cool water/wrap n wet bandages. |
P335 | Brush off loose particles from skin. |
P336 | Thaw frosted parts with lukewarm water. Do not rub affected area. |
P337 | If eye irritation persists: |
P338 | Remove contact lenses, if present and easy to do. Continue rinsing. |
P340 | Remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P341 | If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P342 | If experiencing respiratory symptoms: |
P350 | Gently wash with plenty of soap and water. |
P351 | Rinse cautiously with water for several minutes. |
P352 | Wash with plenty of soap and water. |
P353 | Rinse skin with water/shower. |
P360 | Rinse immediately contaminated clothing and skin with plenty of water before removing clothes. |
P361 | Remove/Take off immediately all contaminated clothing. |
P362 | Take off contaminated clothing and wash before reuse. |
P363 | Wash contaminated clothing before reuse. |
P370 | In case of fire: |
P371 | In case of major fire and large quantities: |
P372 | Explosion risk in case of fire. |
P373 | DO NOT fight fire when fire reaches explosives. |
P374 | Fight fire with normal precautions from a reasonable distance. |
P376 | Stop leak if safe to do so. Oxidising gases (section 2.4) 1 |
P377 | Leaking gas fire: Do not extinguish, unless leak can be stopped safely. |
P378 | |
P380 | Evacuate area. |
P381 | Eliminate all ignition sources if safe to do so. |
P390 | Absorb spillage to prevent material damage. |
P391 | Collect spillage. Hazardous to the aquatic environment |
P301 + P310 | IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
P301 + P312 | IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
P301 + P330 + P331 | IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
P302 + P334 | IF ON SKIN: Immerse in cool water/wrap in wet bandages. |
P302 + P350 | IF ON SKIN: Gently wash with plenty of soap and water. |
P303 + P361 + P353 | IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
P304 + P312 | IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell. |
P304 + P340 | IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. |
P304 + P341 | IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P305 + P351 + P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
P306 + P360 | IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes. |
P307 + P311 | IF exposed: call a POISON CENTER or doctor/physician. |
P308 + P313 | IF exposed or concerned: Get medical advice/attention. |
P309 + P311 | IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician. |
P332 + P313 | IF SKIN irritation occurs: Get medical advice/attention. |
P333 + P313 | IF SKIN irritation or rash occurs: Get medical advice/attention. |
P335 + P334 | Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. |
P337 + P313 | IF eye irritation persists: Get medical advice/attention. |
P342 + P311 | IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
P370 + P376 | In case of fire: Stop leak if safe to Do so. |
P370 + P378 | In case of fire: |
P370 + P380 | In case of fire: Evacuate area. |
P370 + P380 + P375 | In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. |
P371 + P380 + P375 | In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. |
Storage | |
Code | Phrase |
P401 | |
P402 | Store in a dry place. |
P403 | Store in a well-ventilated place. |
P404 | Store in a closed container. |
P405 | Store locked up. |
P406 | Store in corrosive resistant/ container with a resistant inner liner. |
P407 | Maintain air gap between stacks/pallets. |
P410 | Protect from sunlight. |
P411 | |
P412 | Do not expose to temperatures exceeding 50 oC/ 122 oF. |
P413 | |
P420 | Store away from other materials. |
P422 | |
P402 + P404 | Store in a dry place. Store in a closed container. |
P403 + P233 | Store in a well-ventilated place. Keep container tightly closed. |
P403 + P235 | Store in a well-ventilated place. Keep cool. |
P410 + P403 | Protect from sunlight. Store in a well-ventilated place. |
P410 + P412 | Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF. |
P411 + P235 | Keep cool. |
Disposal | |
Code | Phrase |
P501 | Dispose of contents/container to ... |
P502 | Refer to manufacturer/supplier for information on recovery/recycling |
Physical hazards | |
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive; mass explosion hazard |
H202 | Explosive; severe projection hazard |
H203 | Explosive; fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable aerosol |
H223 | Flammable aerosol |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
Sorry,this product has been discontinued.
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