Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | |||||
{[ item.p_purity ]} | {[ item.pr_size ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} | {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate) ]} | {[ item.pr_usastock ]} | Inquiry - | {[ item.pr_chinastock ]} | Inquiry - |
* Storage: {[proInfo.prStorage]}
CAS No. : | 87199-18-6 | MDL No. : | MFCD01074603 |
Formula : | C6H7BO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | WFWQWTPAPNEOFE-UHFFFAOYSA-N |
M.W : | 137.93 | Pubchem ID : | 2734359 |
Synonyms : |
|
Num. heavy atoms : | 10 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.0 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 3.0 |
Molar Refractivity : | 38.29 |
TPSA : | 60.69 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | Yes |
Log Kp (skin permeation) : | -6.81 cm/s |
Log Po/w (iLOGP) : | 0.0 |
Log Po/w (XLOGP3) : | 0.47 |
Log Po/w (WLOGP) : | -0.93 |
Log Po/w (MLOGP) : | -0.36 |
Log Po/w (SILICOS-IT) : | -1.2 |
Consensus Log Po/w : | -0.4 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -1.37 |
Solubility : | 5.89 mg/ml ; 0.0427 mol/l |
Class : | Very soluble |
Log S (Ali) : | -1.31 |
Solubility : | 6.7 mg/ml ; 0.0486 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -0.68 |
Solubility : | 28.6 mg/ml ; 0.207 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.59 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | 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 |
---|---|---|
58% | With sec.-butyllithium In tetrahydrofuran | (vi) Preparation of 3-hydroxylphenyl boronic acid 3-Bromophenol (8.65 g, 50 mmol) in dry THF (150 mL) was treated with sodium hydride (60percent, 2.4 g, 60 mmol) at r.t. After 1 h, sec-butyllithium (1.3 M, 50 mL, 65 mmoL) was added dropwise to the reaction solution at -78° C. The reaction mixture was then allowed to stir at the same temperature for 30 min prior to addition of trimethyl borate (15 mL). After warming up to r.t. for 2 hrs, the reaction mixture was quenched with water (50 mL), and extracted with dichloromethane (2*100 mL). The combined organic phases were dried over MgSO4 and evaporated to give the title compound as a white solid (4.0 g, 58 percent), which was used in the Suzuki coupling reactions without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94% | at 20℃; for 48 h; | To a 500 mL three-necked flask, 3-hydroxyphenylboronic acid (10.0 g, 72.46 mmol, 1.0 eq) and methylene chloride (300 mL) were added, and pinacol (10.0 g, 84.60 mmol, 1.2 eq) was added under stirring, followed by stirring at room temperature for 48 h. The reaction solution was poured into water (400 mL). The mixed solution was poured into a separatory funnel. The organic phase was separated and the aqueous phase was extracted twice with dichloromethane (400 mL). The combined organic phases were dried over anhydrous sodium sulfate and filtered. The crude product was purified by column chromatography (200-300 mesh silica gel, methylene chloride/methanol mixed solvent at a volume ratio of 100/1 as eluent) to obtain 15.0 g of a white solid with a yield of 94percent and a purity of 97percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With bis-triphenylphosphine-palladium(II) chloride; potassium phosphate In 1,4-dioxane; water at 95℃; Inert atmosphere | General procedure: The halo aryl (1.0 equiv) was dissolved in a mixture of water:dioxane (1:1). The boronic acid or ester(1.5 equiv) and potassium phosphate (5.0 equiv) were added. The solution was degassed byvacuum/argon cycles (10 times) before addition of PdCl2(PPh3)2 (10 molpercent) and further degassed (5times). The resulting mixture was stirred at 95 °C under argon atmosphere for 16-20 hours. Thereaction mixture was filtered through Celite and diluted with water (approx. 30 mL) before washingwith chloroform (3 x 30 mL). If not stated otherwise, the aqueous phase was concentrated underreduced pressure and applied to a C18 precolumn before purification on a 10g or 60 g C18 column witha gradient of acetonitrile in water (10-100percent) to yield the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In 1,2-dimethoxyethane; at 60℃; for 24h; | Water (10 ml), sodium carbonate (4.76 g) and tetrakistriphenylphosphine palladium (866 mg) were added in that order to a dimethoxyethane (50 ml) solution containing <strong>[22726-00-7]3-bromobenzamide</strong> (3.0 g) and (3-hydroxyphenyl)boronic acid (2.27 g), followed by stirring at 60C for 24 hours. The reaction solution was cooled, diluted with EtOAc, and the organic layer was washed with water and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (eluent: EtOAc) to obtain a pale yellow powder (2.74 g). Using the resulting compound and in the same manner as in Reference Example 1, the compound of Reference Example 28 was obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With sodium carbonate In ethanol; water; toluene at 90℃; for 5h; | 7 INTERMEDIATE 7: tert-butyl 4- [ {4- [ (DIETHYLAMINO) carbonyl] phenyl} (3- hydroxyphenyl) methylene] piperidine-1-carboxylate A solution of INTERMEDIATE 5 (4.08 g, 9.04 mmol), 3-hydroxyphenylboronic acid (1.97 g, 14.3 mmol) and aqueous 2N sodium carbonate (11.3 mL, 22.6 mmol) in a 1: 1 mixture of toluene/ethanol (200 mL) was degassed for 20 minutes. Palladium tetrakistriphenylphosphine (1.05 g, 0.909 mmol) was added and the reaction mixture was purged with nitrogen and heated to 90 °C. After 5 h, the reaction was cooled to room temperature and saturated aqueous ammonium chloride was added. The mixture was extracted with two portions of ethyl acetate and the combined organic extracts were dried (NA2SO4), filtered and concentrated. The residue was purified by flash chromatography eluting with 0% to 100% ethyl acetate in hexanes to yield INTERMEDIATE 7 as a white solid (4.24 g, 100%). 1H NMR (400MHZ, CDC13) 8 1.10 (t, J = 7.42 Hz, 3H), 1.20 (t, J = 7.03 Hz, 3H), 1.42 (s, 9H), 2.25-2. 33 (m, 4H), 3.23-3. 31 (m, 2H), 3.39-3. 46 (m, 4H), 3.46-3. 54 (m, 2H), 6.51 (dd, J = 2.15, 1.56 Hz, 1H), 6.57 (ddd, J = 7.62, 1.56, 0.98 Hz, 1H), 6.62 (ddd, J = 8.20, 2.54, 0.98 Hz, 1H), 7.06-7. 12 (m, 1H), 7.19 (d, J = 8.40 Hz, 2H), 7.29 (d, J = 8.40 Hz, 2H). |
100% | With sodium carbonate In ethanol; water; toluene at 90℃; for 5h; | 6 INTERMEDIATE 6: TERT-BUTYL 4- [ {4- [ (DIETHYLAMINO) CARBONYL] PHENYL} (3- hydroxyphenyl) methylene] PIPERIDINE-1-CARBOXYLATE To a flask containing INTERMEDIATE 5 (4.08 g, 9.04 mmol) was added toluene (100 ML), ethanol (100 mL), 3-hydroxyphenylboronic acid (1. 97 g, 14.3 MMOL), and aqueous 2N sodium carbonate (11. 3 mL, 22.6 MMOL). The solution was degassed for 20 minutes, then palladium tetrakistriphenylphosphine (1. 05 g, 0.909 mmol) was added. The reaction mixture was purged with nitrogen and heated to 90 °C. After 5 h, the reaction was cooled to rt and saturated aqueous ammonium chloride was added. The mixture was extracted with two portions of ethyl acetate and the combined organic extracts were dried (NA2SO4), filtered and concentrated. The residue was purified by flash chromatography, eluting 0% to 100% ethyl acetate in hexanes, to yield INTERMEDIATE 6 as a colourless solid (4.24 g, 100%).'H NMR (400MHZ, CDCL3) 6 1. 10 (t, J = 7.42 Hz, 3H), 1.20 (t, J = 7.03 Hz, 3H), 1.42 (s, 9H), 2.25-2. 33 (M, 4H), 3.23-3. 31 (M, 2H), 3.39-3. 46 (M, 4H), 3.46-3. 54 (M, 2H), 6.51 (dd, J = 2.15, 1. 56 Hz, 1H), 6.57 (ddd, J = 7.62, 1.56, 0.98 Hz, 1H), 6.62 (ddd, J = 8. 20, 2.54, 0.98 Hz, 1H), 7.06-7. 12 (M, 1H), 7.19 (d, J = 8.40 Hz, 2H), 7.29 (d, J = 8. 40 Hz, 2H). |
100% | With sodium carbonate In ethanol; water; toluene at 20 - 90℃; for 5.33333h; | INTERMEDIATE 7: tert-butyl 4-[{4-[(DIETHYLAMINO) CARBONYL] PHENYL} (3- hydroxyphenyl) methylene] piperidine-I-carboxylate To a flask containing INTERMEDIATE 5 (4.08 g, 9.04 mmol) was added toluene (100 mL), ethanol (100 mL), 3-hydroxyphenylboronic acid (1.97 g, 14.3 MMOL), and aqueous 2N sodium carbonate (11. 3 mL, 22.6 MMOL). The solution was degassed for 20 minutes, then palladium tetrakistriphenylphosphine (1. 05 g, 0.909 mmol) was added. The reaction mixture was purged with nitrogen and heated to 90 °C. After 5 h, the reaction was cooled to rt and saturated aqueous ammonium chloride was added. The mixture was extracted with two portions of ethyl acetate and the combined organic extracts were dried (NA2SO4), filtered and concentrated. The residue was purified by flash chromatography, eluting 0% to 100% ethyl acetate in hexanes, to yield INTERMEDIATE 7 as a colourless solid (4.24 g, 100%). 1H NMR (400MHZ, CDCL3) No. 1.10 (t, J = 7.42 Hz, 3H), 1.20 (t, J = 7.03 Hz, 3H), 1.42 (s, 9H), 2.25-2. 33 (m, 4H), 3.23-3. 31 (m, 2H), 3.39-3. 46 (m, 4H), 3.46-3. 54 (m, 2H), 6.51 (dd, J = 2.15, 1.56 Hz, 1H), 6.57 (ddd, J = 7.62, 1.56, 0.98 Hz, 1H), 6.62 (ddd, J = 8. 20, 2.54, 0.98 Hz, 1H), 7.06-7. 12 (m, 1H), 7.19 (d, J = 8.40 Hz, 2H), 7.29 (d, J = 8. 40 Hz, 2H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With phosphate potassium salt In DMF (N,N-dimethyl-formamide) at 80℃; for 12.25h; | XV. E 3-Pyridin-2-yl-phenol [0284] In a vial, a mixture of potassium phosphate (1.28 g, 6 mmol), 2- bromo-pyridine (0.2 mL, 2 mmol), 3-hydroxy-phenylboronic acid (338 mg, 2.4 mmol) in DMF (4 mL) was purged with argon while stirring for 15 min. After Pd (PPh3) 4 (235 mg, 0.1 mmol) was added and the vial was sealed. The mixture was heated for 12 h at 80 °C and at room temp, the mixture was quenched with water (lmL). The mixture was extracted with dichloromethane once the pH was adjusted to 7-8 with 10 % HC1. The combined organic phase was concentrated. The residue in ethyl acetate (35 mL) was washed with brine (5 x 20 mL) and water (25 mL) then concentrated. Flash column chromatography provided the product (300 mg, 88 %). 1H NMR (acetone-d6). No. : 6.92 (ddd, 1H, J = 8.0, 2.5 & 0.9 Hz), 7.32 (m, 2H), 7.59 (ddd, 1H, J = 7. 8, 2.5 & 1.0 Hz), 7. 67 (dd, 1H, J = 2.3 & 1.9 Hz), 7. 88 (m, 2H), 8.49 (s, 1H, OH), 8.66 (ddd, 1H, J = 4.8, 1.7 &1. 0 Hz). |
81% | With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In ethanol; water; toluene Reflux; | |
76.1% | With potassium phosphate; palladium diacetate In water; isopropyl alcohol for 6h; Reflux; | 1 synthesis of 3-(2-pyridyl)phenol (4-C) synthesis of 3-(2-pyridyl)phenol (4-C) Sequentially 1. 66g (12mmol) 3- hydroxyphenyl boronic acid (4-A), L 58g (lOmmol) 2- bromopyridine (4-B), 5. 33g (25mmol) potassium phosphate, 45mg (0. 2mmol) palladium acetate, 50ml of isopropanol and 50ml of water were added to a 250ml three reaction flask was heated to reflux for 6 hours. Completion of the reaction, after removal of isopropanol by rotary evaporation plus 40ml X 3 and extracted with ethyl acetate, dried over anhydrous magnesium sulfate and filtered two hours, solvent removal, crystallization, and dried to give 1. 32g as a pale yellow solid, i.e. Compound 4 -C, content of 98. 6% (HPLC), yield 76.1%. |
76.1% | With potassium phosphate; palladium diacetate In water; isopropyl alcohol at 80℃; for 6h; | 1 Synthesis of 3-(2-pyridinyl)phenol (4-C) 3-hydroxyphenylboronic acid (formula 4-A, 20 mmol, 2.77 g), 2-bromopyridine (formula 4-B, 10 mmol, 1.58 g), potassium phosphate (30 mmol, 6.39 g), palladium acetate (0.2 mmol, 45 mg), isopropanol (50 ml) and water (50 ml) were added to a 250 ml, three-necked reaction flask successively, heated to 80° C. to react for 6 hours. When the reaction was finished, isopropanol was removed by rotary evaporation and ethyl acetate (40 ml×3) was added for extraction, then the obtained organic phase was dried, filtered, desolventized, crystallized and dried to obtain 1.32 g of pale yellow solid, i.e. compound 4-C, with the content of 98.6% (HPLC) and the yield of 76.1%. |
65% | With 1,1',1'',1'''-benzene-1,2,4,5-tetrayltetrakis(methylene)tetrakis-(piperidin-4-ol); palladium diacetate; potassium carbonate In ethanol; water at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate; tricyclohexylphosphine;palladium diacetate; In 1,4-dioxane; water; at 90℃; for 3h;Micro wave conditions; | A mixture of [2-(4-bromo-phenyl)-ethyl]-carbamic acid tert-butyl ester (500 mg), 3-hydroxy- benzeneboronic acid (296 mg), sodium carbonate (265 mg), palladium (II) acetate (7 mg) and tricyclohexylphosphine (10 mg) in water (3 ml) and dioxane (12 ml) is kept at 90C under micro wave conditions for 180 min. The mixture is cooled down to rt and is filtered through an EXTUBE extraction column (Varian) with EtOAc ( 200 ml). The filtrate is evaporated and the resulting crude product is purified on silica (15Og) with cyclohexane /EtOAc 5/1 to afford pure [2-(3'-hydroxy-biphenyl-4-yl)-ethyl]-carbamic acid tert-butyl ester.MS (ESI+): 336 [M+Na]; Rf: (EtOAc/hexane = 1/2): 0.28. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate; tricyclohexylphosphine;palladium diacetate; In 1,4-dioxane; water; at 90℃; for 3.83333h;Micro wave conditions; | (3'-Hydroxy-biphenyl-4-ylmethyl)-carbamic acid tert-butyl ester A mixture of (4-bromo-benzyl)-carbamic acid tert-butyl ester (600 mg), 3-hydroxybenzene- boronic acid (373 mg), sodium carbonate (333 mg), palladium (II) acetate (10 mg) and tri- cyclohexylphosphine (13 mg) in water (3.5 ml) and dioxane (14 ml) is kept at 900C under micro wave conditions for 230 min. The mixture is cooled down to rt and is filtered through an EXTUBE extraction column with EtOAc ( 200 ml). The filtrate is evaporated and the resulting crude product is purified on silica (9Og) with cyclohexane /EtOAc 95:5 to 70:30 to afford pure (3'-hydroxy-biphenyl-4-ylmethyl)-carbamic acid tert-butyl ester.MS (ESI+): 322 [M+Na]; Rf: (EtOAc/hexane = 1/2): 0.28. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In tetrahydrofuran; at 150℃; for 3h;Reactivity (does not react); | No evidence of product formation corresponding to xanthene structure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
tris-(dibenzylideneacetone)dipalladium(0); | Example 134 4-(3,4-diethoxyphenyl)-N-[4-(3-hydroxyphenyl)-6-phenylpyridin-2-yl]-4-oxobutanamide Using N-(4-chloro-6-phenylpyridin-2-yl)-4-(3,4-diethoxyphenyl)-4-oxobutanamide obtained in Example 43-(3) (22.6 mg), tris(dibenzylideneacetone)dipalladium (1.1 mg), biphenyl-2-yl(dicyclohexyl)phosphine (1.8 mg), 1N aqueous potassium carbonate solution (0.1 mL) and (3-hydroxyphenyl)boronic acid (17.2 mg) as starting materials and in the same manner as in Example 119, 4-(3,4-diethoxyphenyl)-N-[4-(3-hydroxyphenyl)-6-phenylpyridin-2-yl]-4-oxobutanamide (11.0 mg) was obtained. HPLC (220 nm) purity 91% (retention time 1.94 min) MS (ESI+, m/e) 511 (M+H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
tris-(dibenzylideneacetone)dipalladium(0); | Example 165 4-(2,3-dihydro-1-benzofuran-5-yl)-N-[4-(3-hydroxyphenyl)-6-phenylpyridin-2-yl]-4-oxobutanamide Using N-(4-chloro-6-phenylpyridin-2-yl)-4-(2,3-dihydro-1-benzofuran-5-yl)-4-oxobutanamide obtained in Example 114-(1) (20.3 mg), tris(dibenzylideneacetone)dipalladium (1.1 mg), biphenyl-2-yl(dicyclohexyl)phosphine (1.8 mg), 1N aqueous potassium carbonate solution (0.1 mL) and (3-hydroxyphenyl)boronic acid (17.2 mg) as starting materials and in the same manner as in Example 119, 4-(2,3-dihydro-1-benzofuran-5-yl)-N-[4-(3-hydroxyphenyl)-6-phenylpyridin-2-yl]-4-oxobutanamide (11.5 mg) was obtained. HPLC (220 nm) purity 91% (retention time 1.88 min) MS (ESI+, m/e) 465 (M+H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In 1,2-dimethoxyethane; water; at 180℃; for 1h; | A mixture of <strong>[4010-81-5]4-(2-chloro-9H-purin-6-yl)morpholine</strong> (0.18 g, 0.75 mmol), tetrakis(triphenylphosphine)palladium (30 mg), and 3-hydroxyphenylboronic acid (0.16 g, 1.1 mmol) in 1,2-dimethoxyethane (2.6 mL) and 2 M aqueous sodium carbonate (0.75 mL) was heated in a microwave reactor for one hour at 180 C. After being allowed to cool to room temperature, the mixture was acidified with 5% aqueous potassium hydrogen sulfate solution and then extracted with ethyl acetate. Organics were washed successively with water and saturated aqueous sodium hydrogen carbonate solution, then dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure to afford a crude white solid. The crude material was purified by reverse phase HPLC, employing a gradient elution of 85% A solvent (0.1% aqueous trifluoroacetic acid) to 100% B solvent (acetonitrile) to afford 3-(6-morpholino-9H-purin-2-yl)phenol as a white powder (80 mg). MS (ES+): 298.0 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | With palladium diacetate; potassium carbonate In tetrahydrofuran; water monomer for 5h; Inert atmosphere; Reflux; | |
78% | With palladium diacetate; potassium carbonate In water monomer; acetone at 20℃; for 0.333333h; Inert atmosphere; | PATHWAY G PATHWAY G Nitrogen was bubbled through a mixture of 1-bromo-4-methoxybenzene (5.0 g, 26.8 mmol), 3-hydroxyphenylboronic acid (6.8 g, 49.6 mmol), aqueous potassium carbonate (2 M, 20 mL, 40 mmol), acetone (170 mL) and H20 (300 mL) for 5 minutes. Pd(OAc)2 (800 mg,3.55 mmol) was added and the mixture was stirred under a nitrogen atmosphere at room temperature for 20 minutes, after which time LC-MS analysis showed the reaction to be complete. The reaction mixture was concentrated under vacuum then diluted with ethyl acetate (200 mL). The resulting suspension was filtered through a pad of celite, and the aqueous phase was then separated and extracted with EtOAc (2 x 100 mL). The combined organics were dried over MgSO4, filtered and concentrated to dryness under vacuum. The crude product was loaded onto a 340 g Biotage silica cartridge and purified by Biotage chromatography (eluting with iso-hexane/EtOAc, gradient 0 to 50 %). The target compound 4’-methoxy-[1,1’-biphenyll-3-ol was isolated as a white solid (5.66 g, 78 % yield). |
78% | With palladium diacetate; potassium carbonate In water monomer; acetone at 20℃; for 0.416667h; Inert atmosphere; | G Pathway G Nitrogen was bubbled through a mixture of 1-bromo-4-methoxybenzene (5.0 g, 26.8 mmol), 3-hydroxyphenylboronic acid (6.8 g, 49.6 mmol), aqueous potassium carbonate (2 M, 20 mL, 40 mmol), acetone (170 mL) and H2O (300 mL) for 5 minutes. Pd(OAc)2 (800 mg, 3.55 mmol) was added and the mixture was stirred under a nitrogen atmosphere at room temperature for 20 minutes, after which time LC-MS analysis showed the reaction to be complete. The reaction mixture was concentrated under vacuum then diluted with ethyl acetate (200 mL). The resulting suspension was filtered through a pad of celite, and the aqueous phase was then separated and extracted with EtOAc (2×100 mL). The combined organics were dried over MgSO4, filtered and concentrated to dryness under vacuum. The crude product was loaded onto a 340 g Biotage silica cartridge and purified by Biotage chromatography (eluting with iso-hexane/EtOAc, gradient 0 to 50%). The target compound 4′-methoxy-[1,1′-biphenyl]-3-ol was isolated as a white solid (5.66 g, 78% yield). |
74.8% | With tetrakis-(triphenylphosphine)-palladium; anhydrous sodium carbonate In ethanol; water monomer; toluene at 80℃; for 12h; | 1. 2-(2-fluoro-4-(((4'-methoxy-[1,1'-biphenyl]-3-yl)oxy)methyl)phenoxy)acetic acid (compound 17) (3-hydroxyphenyl)boronic acid (0.37 g, 2.67 mmol), 14a (0.50 g, 2.67 mmol), Pd(PPh3)4 (0.37 g, 0.32 mmol) and sodium carbonate (0.85 g, 8.02 mmol) in toluene/ethanol/H2O (35 mL, 3/1/3) was refluxed under nitrogen atmosphere for 24 h. Then the mixture was diluted with saturated ammonium chloride solution and ethyl acetate, and the insoluble material was filtered through Celite. The organic layer of the filtrate was washed with water (25 mL) and brine (25 mL), dried over anhydrous sodium sulfate, and evaporated in vacuo. The residue was purified by column chromatography using a mixture of petroleum petroleum ether /ethyl acetate (10:1, v/v) as eluent to afford the desired product 15a 0.4 g (yield: 74.8%) as a white solid. |
74.8% | With tetrakis-(triphenylphosphine)-palladium; anhydrous sodium carbonate In ethanol; water monomer; toluene at 80℃; for 12h; | 1. 2-(2-fluoro-4-(((4'-methoxy-[1,1'-biphenyl]-3-yl)oxy)methyl)phenoxy)acetic acid (compound 17) (3-hydroxyphenyl)boronic acid (0.37 g, 2.67 mmol), 14a (0.50 g, 2.67 mmol), Pd(PPh3)4 (0.37 g, 0.32 mmol) and sodium carbonate (0.85 g, 8.02 mmol) in toluene/ethanol/H2O (35 mL, 3/1/3) was refluxed under nitrogen atmosphere for 24 h. Then the mixture was diluted with saturated ammonium chloride solution and ethyl acetate, and the insoluble material was filtered through Celite. The organic layer of the filtrate was washed with water (25 mL) and brine (25 mL), dried over anhydrous sodium sulfate, and evaporated in vacuo. The residue was purified by column chromatography using a mixture of petroleum petroleum ether /ethyl acetate (10:1, v/v) as eluent to afford the desired product 15a 0.4 g (yield: 74.8%) as a white solid. |
69% | With palladium 10% on activated carbon; n-tetrabutylammonium fluoride trihydrate at 150℃; for 0.5h; Microwave irradiation; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94% | In dichloromethane; at 20℃; for 48h; | To a 500 mL three-necked flask, 3-hydroxyphenylboronic acid (10.0 g, 72.46 mmol, 1.0 eq) and methylene chloride (300 mL) were added, and pinacol (10.0 g, 84.60 mmol, 1.2 eq) was added under stirring, followed by stirring at room temperature for 48 h. The reaction solution was poured into water (400 mL). The mixed solution was poured into a separatory funnel. The organic phase was separated and the aqueous phase was extracted twice with dichloromethane (400 mL). The combined organic phases were dried over anhydrous sodium sulfate and filtered. The crude product was purified by column chromatography (200-300 mesh silica gel, methylene chloride/methanol mixed solvent at a volume ratio of 100/1 as eluent) to obtain 15.0 g of a white solid with a yield of 94% and a purity of 97%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate;dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; In 1,2-dimethoxyethane; ethanol; at 100℃; for 2h; | To <strong>[659731-48-3]5-chloro-2-fluoro-4-iodopyridine</strong> (516 mg, 2.004 mmol) add 3- hydroxyphenylboronic acid (498 mg, 3.61 mmol), PdC12(dppf).CH2C12 adduct (164 mg, 0.200 mmol), DME (12.5 ml), Ethanol (1.5 ml) and last add 2M sodium carbonate (3.51 ml, 7.02 mmol). The reaction was stirred at 100 C for 2 hr and followed by LCMS. The reaction was cooled, 200 ml of ethyl acetate was added, and washed with saturated sodium bicarbonate, water, saturated salt solution, dried sodium sulfate, filtered and concentrated to crude product. The crude was purified by silica gel chromatography using 40g column eluting with 0%-35% ethyl acetate with hexane. The desired fractions were concentrated to constant mass, giving 425 mg of the titled compound as free base used without further purification. LCMS (m/z): 224.1 (MH+), rt = 0.85 min. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With potassium phosphate; tetrakis(triphenylphosphine) palladium(0); potassium bromide; In 1,4-dioxane; at 85℃;Inert atmosphere; | General procedure: A stirred mixture of <strong>[51628-12-7]4-iodophenylacetonitrile</strong> (35), arylboronic acid (36-45) (1.1 equiv), Pd(PPh3)4 (0.03 equiv), KBr (1.1 equiv), and K3PO4 (2.5 equiv) in dioxane (5 mL/mmol) was purged with N2 for10 min at room temperature and then stirred overnight at 85 C under N2. The mixture was diluted with water and extracted with AcOEt. The organic phase was washed three times with water, dried (Na2SO4), and evaporated under vacuum. The residue was chromatographedon silica gel. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | With tetrakis(triphenylphosphine) palladium(0); potassium carbonate; In N,N-dimethyl-formamide; at 85℃; for 6h;Inert atmosphere; | General procedure: A mixture of 4 (1.5g, 5.9mmol), 4-hydroxyphenyl boronic acid (1.4g, 9.9mmol), K2CO3 (1.2g, 8.8mmol), Pd (PPh3)4 (0.2g, 0.2mmol) and DMF (20mL) was heated at 85C under nitrogen. After 6h, the reaction was was poured to H2O (30mL) and extracted with ethyl acetate. The combined organic was washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated under vacuum. The residue was recrystallized from ethanol to give a yellowed solid 5a. Yield 80%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86.6% | With potassium phosphate; palladium diacetate; In tetrahydrofuran; water; for 6h;Reflux; | 3-hydroxyphenyl boronic acid (formula 48-A, 12 mmol, 1.66 g), 2-bromo-5-trifluoromethyl-pyridine (formula 48-B, 10 mmol, 2.26 g), potassium phosphate (25 mmol, 5.33 g), palladium acetate (0.1 mmol, 23 mg), THF (50 ml) and water (50 ml) were successively added to a 250 ml, three-necked reaction flask, heated to reflux temperature to react for 6 hours. When the reaction was finished, THF was removed by rotary evaporation and ethyl acetate (40 ml×3) was added for extraction, dried, filtered, desolventized, crystallized and dried to obtain 2.10 g of pale yellow solid, i.e. compound of formula 48-C, with the content of 98.2% (HPLC) and the yield of 86.6%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | With copper diacetate; triethylamine; In dichloromethane; at 0 - 5℃; for 4h;Sonication; Green chemistry; | General procedure: Naphthylboronic acid (0.25 g, 1.5 mmol) was added with 0.094 g of phenol (1.0 mmol) to 15 mL of DCM. Copper(II) acetate (0.36 g, 2.0 mmol) was then added along with triethylamine (0.5g, 5.0 mmol), and the dismembrator horn placed in the reaction vessel. The sonicator was set to 55 watts and the reaction was allowed to proceed for 4 hours (1 minute pulse with a 3 second rest). Post reaction, the product was isolated by column chromatography. Product yields were determined by weight and purity was confirmed by GC/MS and NMR. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium carbonate; In 1,4-dioxane; water; at 70℃; for 5h;Inert atmosphere; | Step 1: synthesis of 3-(2-chloro-9-isopropyl-9H-purin-6-yl)phenol (5a)To a pre-stirred of solution of <strong>[203436-45-7]2,6-dichloro-9-isopropyl-9H-purine</strong> 3a (230 mg, 1.0 mmol), (3- hydroxyphenyl)boronic acid 4c (152 mg, 1.1 mmol) in dioxane (10 mL), were added a solution of K2C03 (345 mg, 2.5 mmol) in deionized water (1.0 mL). The mixture was degassed for 30 mm then added Pd(dppf)C12.CH2C12 (41 mg), and the resulting mixture was heated at 70C for 5 hours. LC-MS showed the reaction completed. After a simple workup, the product 5a (215 mg, 75%) was obtained by flash chromatography (silica, 20% to 50% ethyl acetate in hexanes). |
75% | To a pre-stirred of solution of 2,6-dichloro-9-isopropyl-9Hpurine13a (230 mg, 1.0 mmol), (3-hydroxyphenyl)boronic acid 14a(152 mg, 1.1 mmol) in dioxane (10 mL), were added a solution of K2CO3 (345 mg, 2.5 mmol) in deionized water (1.0 mL). The mixturewas degassed for 30 min then added Pd(dppf)Cl2·CH2Cl2 (41 mg), andthe resulting mixture was heated at 70 C for 5 h. LC-MS showed the reaction completed. After a simple workup, the product 15a (215 mg,75%) was obtained by flash chromatography (silica, 20% to 50% ethylacetate in hexanes). LC-MS m/z (relative intensity): [M + H]+ 289.3(100%), 291.3 (33.5%). 1H NMR (400 MHz, CDCl3) δ 8.33 (dt, J = 7.8and 1.2 Hz, 1H), 8.24 (dd, J = 2.5 and 1.6 Hz, 1H), 8.18 (s, 1H), 7.43(t, J = 8.0 Hz, 1H), 7.04 (ddd, J = 8.1, 2.6, and 0.9 Hz, 1H), 5.92 (s,1H), 4.97 (septet, J = 6.8 Hz, 1H), 1.66 (d, J = 6.8 Hz, 6H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With palladium diacetate; potassium carbonate; In 2-methoxy-ethanol; water; at 20℃; for 15h; | General procedure: To a solution of the corresponding boronic acid (1.2mmol) in EGME/H2O (3:1, 0.25M) were added Pd(OAc)2 (0.05mmol) and K2CO3 (1.2mmol), followed by the addition of the corresponding phenyl iodide (1.0mmol). The dark reaction mixture was stirred at rt for 15h, then diluted with EtOAc (40mL) and filtered through a pad of Celite. The resulting filtrate was washed with H2O (20mL) and a 1M solution of Na2SO3 (20mL). After separation, the organic phase was dried over Na2SO4 and concentrated under reduced pressure. The residues were purified by column chromatography (Cy/EtOAc). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydride; In tetrahydrofuran; N,N-dimethyl-formamide; at 20℃; | 3-Hydroxyphenylboronic acid (40 mg, 1.05 equiv) and 4-(bromomethyl)phenylboronic acid (65 mg, 1.0 equiv) were dissolved in 6 mE solution of tetrahydrothranN,Ndimethylforamide (1:1 v/v). Sodium hydride (36 mg, 5.0 equiv) is added and the reaction is allowed to stir at room temperature overnight. Water (25 mE) is then added and the reaction is acidified to pH<2 with iN HC1 and transferred to a separatory flannel. The water layer is washed with ethyl acetate (1 x75 mE) and diethyl ether (1 x75 mE). The water layer is then concentrated under vacuum to provide crude oil which is triturated with tetrahydrofuran and methanol to provide the desired boronic acid 326. [2M-3H20]=488.0 mlz. Activity: A |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With potassium phosphate; tetrakis(triphenylphosphine) palladium(0); In 1,4-dioxane; water; at 110℃; for 0.5h;Microwave irradiation; | (3-Hydroxyphenyl) boronic acid (170 mg, 1.235 mmol), 2-bromo-5-methyl- l,3-thiazole (200 mg, 1.123 mmol), K3P04 (481 mg, 2.246 mmol) and Pd(Ph3)4 (131 mg, 0.1 12 mmol) in a mixture 3: 1 of dioxane/ water (12 mL : 4 mL) was heated in MW at 1 10 C for 30 min. The mixture was concentrated under vacuum and NaOH aq solution 1 M and DCM were added. The water was extracted several times with more DCM. The layers were separated. To the aqueous phase HC1 1M aqueous solution was added and the phase was extracted again with more DCM. The combined organics were filtered though a phase separator tube and concentrated in vacuo to give the desired product (190 mg, 0.99 mmol, Yield=75%). LC-MS (ESI): mlz (M+l)+, 191.9. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; sodium carbonate; In 1,4-dioxane; water; at 110℃; for 1.5h;Inert atmosphere; | General procedure: Preparation of 6-chloro-4-arylpyridazin-3-amines Suzuki Method A mixture of sodium carbonate (336 mg, 3.17 mmol),water (5 mL) and 1,4-dioxane (15 mL) were de-gassed with nitrogen for 10 minutesand then treated with the appropriate boronic acid (199 mg, 1.63 mmol) and<strong>[446273-59-2]4-bromo-6-chloropyridazin-3-amine</strong> (330 mg, 1.58 mmol) and [1,1'-bis(diphenylphosphino)ferrocene]dichloropalladium(II),complex with dichloromethane (1:1) (129 mg, 0.16 mmol). The reaction mixturewas heated at 110 Cunder nitrogen for 90 minutes and then cooled to room temperature. The mixturewas partitioned between ethyl acetate and aq brine, the organic layer wasdried, filtered and evaporated under reduced pressure. The crude product waspurified by flash silica chromatography, see below for individual conditions.Fractions containing product were evaporated under reduced pressure to yieldthe desired target. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80.4% | With palladium diacetate; cesium fluoride; In ethylene glycol; at -10℃; for 6h; | synthesis of 3-(3-chloro-6-pyridyl)phenol (19-C) The sequentially 1.66g (12mmol) 3-hydroxy-phenylboronic acid (19-A), 1.92g (10mmol) 2-chloro-5-bromo pyridine (19-B), 3.80g (25mmol) cesium fluoride, 45 mg (0.2mmol) palladium acetate, 50 ml of ethylene glycol added to the 250 ml three port in the reaction bottle, controls heats to -10 C reaction 6 hours. After the reaction is complete, add 40 ml × 3 ethyl acetate extraction, with 40 ml × 3 saturated salt water extraction, anhydrous magnesium sulphate drying 2 hours, filtering, desolvation, crystallization, the drying of 1.67g strawcoloured solid, i.e. compound 19-C, content 99.2% (HPLC), the yield is 80.4%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With potassium carbonate; In water; at 70℃; for 0.5h;Inert atmosphere; | General procedure: In a typical run, h-BN(at)Fur(at)Pd(OAc)2 (0.05 mmol) was added to a mixture of arylboronic acid 1 (1.0 mmol), aryl bromide 2 (1.5 mmol) and K2CO3 (1.5 mmol) in water (1 mL). The resulting mixture was stirred at 70 C under Ar protection, and the progress of the reaction was monitored by TLC. After completion of the reaction, ethyl acetate was added to the reaction mixture and the catalyst was separated. The organic phase was washed with water, dried over anhydrous Na2SO4 and the solvent was evaporated under reduced pressure. Finally, the residue was isolated by chromatography on a column of silica gel to afford the corresponding product 3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80.6% | With palladium diacetate; potassium carbonate; In 1,4-dioxane; water; for 6h;Reflux; | 3-hydroxyphenyl boronic acid (formula 86-A, 12 mmol, 1.66 g), 2-bromo-5-trifluoromethyl-pyridine (formula 86-B, 10 mmol, 2.26 g), potassium carbonate (25 mmol, 3.45 g), palladium acetate (0.5 mmol, 110 mg), dioxane (50 ml) and water (50 ml) were successively added to a 250 ml, three-necked reaction flask, heated for reflux temperature to react for 6 hours. When the reaction was finished, dioxane was removed by rotary evaporation and ethyl acetate (40 ml×3) was added for extraction, the organic phase was dried, filtered, desolventized, crystallized and dried to obtain 1.94 g of pale yellow solid, i.e. compound of formula 86-C, with the content of 99.1% (HPLC) and the yield of 80.6%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85.5% | With palladium diacetate; cesium fluoride; In toluene; at 25℃; for 6h; | 3-hydroxyphenyl boronic acid (formula 87-A, 12 mmol, 1.66 g), 2-bromo-5-trifluoromethyl-pyridine (formula 87-B, 10 mmol, 2.26 g), cesium fluoride (25 mmol, 3.80 g), palladium acetate (0.2 mmol, 45 mg), toluene (50 ml) were successively added to a 25 ml, three-necked reaction flask to react at room temperature (25° C.) for 6 hours. When the reaction was finished, the solution was extracted with ethyl acetate (40 ml×3) and water (40 ml), the organic phase was dried, filtered, desolventized, crystallized and dried to obtain 2.09 g of pale yellow solid, i.e. compound of formula 87-C, with the content of 97.8percent (HPLC) and the yield of 85.5percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With bis-triphenylphosphine-palladium(II) chloride; potassium phosphate; In 1,4-dioxane; water; at 95.0℃;Inert atmosphere; | General procedure: The halo aryl (1.0 equiv) was dissolved in a mixture of water:dioxane (1:1). The boronic acid or ester(1.5 equiv) and potassium phosphate (5.0 equiv) were added. The solution was degassed byvacuum/argon cycles (10 times) before addition of PdCl2(PPh3)2 (10 mol%) and further degassed (5times). The resulting mixture was stirred at 95 C under argon atmosphere for 16-20 hours. Thereaction mixture was filtered through Celite and diluted with water (approx. 30 mL) before washingwith chloroform (3 x 30 mL). If not stated otherwise, the aqueous phase was concentrated underreduced pressure and applied to a C18 precolumn before purification on a 10g or 60 g C18 column witha gradient of acetonitrile in water (10-100%) to yield the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
34% | Pd(PPh3)4 (45mg, OM39mmol) was added to a solution of <strong>[69518-17-8]4-iodo-phthalonitrile</strong>(lg, 3.937mmo1) in dry THF (35mL) and the reaction mixture was stirred for 20 minutes.K2C03 (544 mg, 3.937 rnmol), 3hydroxyphenylboronic acid (543 mg, 3.937 mmol) andH20 (10 mL) were added and the reaction mixture refluxed for 24 hours, after which itwas cooled to room temperature. The THF was evaporated and the resulting solidsuspended in H20 was filtered, washed with H20, redissolved in THF and dried over Na2504. After evaporation of the solvent the solid was purified by column chromatography on silica gel, using heptane/EtOAc 2:1 as eluent, yielding 1 (0.867g, 1 ,338mmo1, 34%) as a white solid.1H NMR (300 MHz, CDC13), oe (ppm): 7.98 (p, J = 9.3 Hz, 1H, H1), 7.93 - 7,83 (m,2H, H), 7.38 (d, J = 7.5 Hz, 1H, H1), 7.14 (d, J = 8.5 Hz, 1H, H), 7.05 (s, 1H, H),6.95 (d, J = 9.5 Hz, 1H, H), 4.93 (s, 1H, OH).13 NMR (300 MHz, MCOD), 6 (ppm): 141.48, 136.46, 134.14, 131.77, 123.63, 98.96.HRMS (MALDITOF, DCTB), in/z: Caic. for C14H8N2ONa: 243.0528, found 243.0524 [M+Na] |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
41% | With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate; In 1,2-dimethoxyethane; water; at 110℃; for 5.0h;Inert atmosphere; | To a solution of 4-chloro-2- (methylthio) -6- (trifluoromethyl) pyrimidine (200mg, 0.87mmol) and (3-hydroxyphenyl) boronic acid (150mg, 1.05mmol) in DME/H2O (5mL/1mL) was added Pd (dppf) 2Cl2 (32mg, 0.04mmol) followed by Na2CO3 (280mg, 2.62mmol) under N2 atmosphere. The reaction mixture was refluxed at 110 for 5hrs. The reaction mixture was cooled to room temperature and filtered over celite. Solvents were removed in vacuo, and the residue was extracted by DCM and H2O 3 times. The organic layer was combined, washed with brine, dried over Na2SO4 and further purified by silica gel column chromatography (PE/EA30/1) to give 104mg of 3- (2- (methylthio) -6- (trifluoromethyl) pyrimidin-4-yl) phenol (71-01) as a white solid (41) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With bis-triphenylphosphine-palladium(II) chloride; sodium carbonate; In methanol; water; toluene;Inert atmosphere; | General procedure: <strong>[405224-23-9]5-bromo-2-chloronicotinonitrile</strong> (5, 2.16 g, 10 mmol), aromatic boronic acid (10 mmol), (PPh3)2PdCl2 (175 mg, 0.25 mmol), Na2CO3 (2.12 g, 20 mmol) were dissolved in a mixed solvent (22 mL, toluene: ethanol: water = 10: 10: 2). Nitrogen gas was bubbled through the reaction mixture for 5 min, and then the mixture was heated to 60C under inert atmosphere for 6 h. The mixture was filtered and the filtrate was concentrated under vacuum. The crude product was extracted with ethyl acetate and the organic layer was concentrated, then the solid was washed with ethyl acetate and petroleum ether to give compounds 6. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide; In 1,4-dioxane; water; at 50℃; for 2h;Inert atmosphere; Sealed tube; | A mixture of (E)-<strong>[5941-55-9]ethyl 3-ethoxyacrylate</strong> (0.600 mL, 4.00 mmol), 3-hydroxyphenyl boronic acid (1.70 g, 12.0 mmol), Rh(COD)Ch (102 mg, 0.207 mmol) and potassium hydroxide (234 mg, 4.17 mmol) in 1,4-dioxane (5 mL) and water (0.5 mL) was stirred for 2 h under a nitrogen atmosphere at 50 C in a sealed tube. The reaction mixture was allowed to cool to RT and poured into 50 mL of saturated aq. H4CI, followed by extraction with ethyl acetate (3 x 50 mL). The organic layers were combined, dried over Na2S04 and concentrated. The residue obtained was purified on silica gel with ethyl acetate/petroleum ether (0-10%) to give compound 24a. Mass Spectrum (LCMS, ESI pos.): Calcd. For CisHieCU: 237.1 [M-H]+; found: 237.1. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; sodium hydroxide In 1,4-dioxane at 50℃; for 16h; Inert atmosphere; | 36.E (E) Ethyl (,S)-3-cyclopropyl-3-(3-hydroxyphenyl)propanoate, (36e-l) and ethyl (R)-3- cyclopropyl-3-(3-hydroxyphenyl)propanoate, (36e-2) To a solution of chloro(l,5-cyclooctadiene)rhodium (I) dimer (2.46 g, 4.99 mmol) in 1,4-dioxane (50 mL) was added NaOH (aq. IN, 150 mL, 150 mmol) at RT under a nitrogen atmosphere. (3-Hydroxyphenyl)boronic acid (27.6 g, 200 mmol) was added, followed by the addition of ethyl (E)-3-cyclopropylacrylate, cpd 36d (14 g, 100 mmol) in 1,4-dioxane (50 mL). The mixture was stirred at 50 °C for 16 h. The mixture was poured into ethyl acetate/water and acidified with 2N HC1 to pH~4. The aqueous layer was extracted with ethyl acetate (2x). The combined organic layers were dried (Na2S04), filtered and concentrated. The resulting residue was first purified by flash chromatography on silica gel with EtO Ac/heptane (0-30%) to give a yellow oil, which was further purified by chiral SFC on a Chiralcel OD-H 5μιη column (250 x 30mm) using 93% CO2, 7% i- PrOH to afford compounds 36e-l ([CX]D20= +35.7 ) and 36e-2. Cpd 36e-2 : 1H NMR (CDCh) δ (ppm): 7.17 (t, J=7.8 Hz, 1H), 6.81 (d, J=7.6 Hz, 1H), 6.72 (t, J=2.0 Hz, 1H), 6.67-6.71 (m, 1H), 4.98 (s, 1H), 4.07 (qd, J=7.1, 3.5 Hz, 2H), 2.66-2.79 (m, 2H), 2.32 (dt, J=9.6, 7.6 Hz, 1H), 1.18 (t, J=7.3 Hz, 3H), 0.95-1.06 (m, 1H), 0.54-0.62 (m, 1H), 0.39-0.48 (m, 1H), 0.27 (dq, J=9.5, 4.7 Hz, 1H), 0.12-0.19 (m, 1H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
27.3% | With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium phosphate; In 1,4-dioxane; water; at 70℃; for 6h; | To a solution of compound 142B (3.4 g, 14.59 mmol) and (3- hydroxyphenyl)boronic acid (2.41 g, 17.51 mmol) in dioxane/H20 (50 mL/10 mL) was added K3PO4 (9.29 g, 43.77 mmol) and Pd(dppf)Cl2 (1.07 g, 1.46 mmol). The mixture was stirred at 70 C for 6 h. The reaction mixture was concentrated under reduced pressure to remove solvent. The residue was diluted with H20 (80 mL) and extracted with EtOAc (50 mL x 3). The combined organic layers were washed with brine (50 mL x 2), dried over Na2S04, filtered and concentrated under reduced pressure to give a residue. The residue was purified by column chromatography (Si02, Petroleum ether/Ethyl acetate = 10/1 to 7: 1) to give the Compound 142C (1.0 g, yield: 27.3%) was obtained as a yellow solid. 1H NMR (400MHz, CDC13) delta 8.01 - 7.87 (m, 1H), 7.36 - 7.32 (m, 1H), 7.30 - 7.26 (m, 2H), 6.90 - 6.79 (m, 1H), 5.41 - 5.30 (m, 1H), 4.24 (q, J=7.1 Hz, 2H), 3.94 (s, 3H), 1.28 (t, J=7.2 Hz, 3H). MS (ESI) m/z (M+H)+ 247.0. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
25.04% | With pyridine; oxygen; copper diacetate; In dichloromethane; at 28℃; under 775.743 Torr; for 48h;Molecular sieve; | To a solution of ethyl 3-methyl-lH-pyrazole-5-carboxylate (20 g, 129.73 mmol), (3-hydroxyphenyl)boronic acid (27 g, 194.59 mmol), 4A MS (30 g) and Py (12 mL, 142.70 mmol) in DCM (500 mL) was added Cu(OAc)2 (26 g, 142.70 mmol). After addition, the reaction mixture was stirred at 28 C for 48h under 02 (15 psi) atmosphere. 100 mL of DCM was added into the reaction mixture and the mixture was filtered. The filtrate was concentrated in vacuum and the residue was dissolved into 300 mL of EtOAc. The mixture was filtered and the filtrate was concentrated in vacuum. The residue was purified by column chromatography (Si02, Petroleum ether/Ethyl acetate = 5/1 to 4: 1 to 3/1) to afford compound 3 (8.0 g, yield 25.04%) as light yellow solid. 1H NMR (400MHz, DMSO-d6) delta 7.21 (t, J=7.9 Hz, 1H), 6.85 - 6.69 (m, 4H), 4.15 (q, J=7.1 Hz, 2H), 2.23 (s, 3H), 1.16 - 1.12 (m, 3H). MS (ESI) m/z (M +H)+ 246.9. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
25% | With trifluoroacetic acid; In chloroform; at 40℃; for 20h;Schlenk technique; Inert atmosphere; Sealed tube; | Into the Schlenk tube, add the stirring magnet, the compound 1m (138mg, 1mmol) of the above formula, and the paraformaldehyde 2 (36mg, 1.2mmol) in sequence,Under nitrogen protection, trichloromethane (10 mL) was added, and trifluoroacetic acid (297 μL, 4 mmol) was added with stirring, and then sealed, heated and stirred at 40 C for reaction for 20 hours. The solvent was distilled off under reduced pressure, and the residue was purified by column chromatography to obtain the compound of formula 3m (37 mg, 25%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
28% | Stage #1: 2-bromo-4-chlorobenzoic acid; 3-hydroxyphenylboronic acid With palladium (II) [1,1'-bis(diphenylphosphanyl)ferrocene] dichloride; anhydrous sodium carbonate In toluene for 14h; Inert atmosphere; Stage #2: With sodium hydroxide In tetrahydrofuran; methanol; water monomer at 20℃; |
Tags: 87199-18-6 synthesis path| 87199-18-6 SDS| 87199-18-6 COA| 87199-18-6 purity| 87199-18-6 application| 87199-18-6 NMR| 87199-18-6 COA| 87199-18-6 structure
[ 192182-54-0 ]
3,5-Dimethoxybenzeneboronic acid
Similarity: 0.89
[ 122775-35-3 ]
3,4-Dimethoxyphenylboronic acid
Similarity: 0.87
[ 192182-54-0 ]
3,5-Dimethoxybenzeneboronic acid
Similarity: 0.89
[ 122775-35-3 ]
3,4-Dimethoxyphenylboronic acid
Similarity: 0.87
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.
Home
* Country/Region
* Quantity Required :
* Cat. No.:
* CAS No :
* Product Name :
* Additional Information :