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Structure of 2195-47-3

Chemical Structure| 2195-47-3

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Product Details of [ 2195-47-3 ]

CAS No. :2195-47-3
Formula : C13H8FNO3
M.W : 245.21
SMILES Code : O=C(C1=CC=C(F)C=C1)C2=CC=C([N+]([O-])=O)C=C2
MDL No. :MFCD00053428
InChI Key :ICDAYOOBGHYICW-UHFFFAOYSA-N
Pubchem ID :97658

Safety of [ 2195-47-3 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H317-H319
Precautionary Statements:P280-P305+P351+P338

Application In Synthesis of [ 2195-47-3 ]

* 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.

  • Downstream synthetic route of [ 2195-47-3 ]

[ 2195-47-3 ] Synthesis Path-Downstream   1~41

  • 1
  • [ 2195-47-3 ]
  • (4-Fluoro-phenyl)-(4-nitro-phenyl)-methanone oxime [ No CAS ]
  • 2
  • [ 462-06-6 ]
  • [ 122-04-3 ]
  • [ 2195-47-3 ]
YieldReaction ConditionsOperation in experiment
82% With hydrogenchloride;aluminium trichloride; In carbon disulfide; Step 1 Aluminum chloride (26.0 g, 195 mmol) was added in portions to a solution of 4-nitrobenzoyl chloride (27.8 g, 150 mL) and 4-fluorobenzene (15.8 g, 165 mmol) in carbon disulfide (100 mL). After 1 hour, the resulting yellow mixture was carefully treated with concentrated hydrochloric acid (60 mL) and stirred for 30 minutes. The mixture was then diluted with water and extracted with ethyl acetate. The organic layer was washed with dilute sodium hydroxide solution, water and brine, dried (MgSO4), and the solvent removed in vacuo. Crystallization from ethyl ether/hexanes gave 4-(4-fluorobenzoyl)-nitrobenzene (10.6 g, 82%) as a white solid, m.p. 87-88 C.; Analysis for C13H8NO3F: Calc.: C, 63.69; H, 3.26; N, 5.71: Found: C, 63.89; H, 3.28; N, 5.78.
65% With aluminum (III) chloride; In Nitroethane; at 20℃; for 4h; Intermediate 20 : Preparation of 4- (4-fluoro-benzyl)-phenylamine; Step 1. Preparation of (4-fluoro-phenyl)- (4-nitrophenyl)-methanone; To a solution of 4-nitrobenzoyl chloride (2.3 g, 13 mmol) in nitroethane (20 mL) was added aluminum chloride (3.5 g, 26 mmol) followed by fluorobenzene (1.2 mL, 13 mmol). The mixture was stirred at rt for 4 h, then quenched carefully with 6M HC1. The reaction mixture was washed with dilute aqueous NaOH and brine, dried over sodium sulfate, filtered, and concentrated in vacuo to provide the crude product as a light yellow solid. The solid was purified by recrystallization from hexanes to give (4-fluoro-phenyl) - (4- nitrophenyl) -methanone (2.0 g, 65%).'H NMR (CHC13-d) 8 8. 41-8. 32 (m, 5H), 7.90 (m, 1H), 7.84 (m, 1H), 7.20 (m, 1H).
65% With aluminum (III) chloride; In Nitroethane; at 20℃; for 4h; To a solution of 4-nitrobenzoyl chloride (2.3 g, 13 mmol) in nitroethane (20 mL) was added aluminum chloride (3.5 g, 26 mmol) followed by fluorobenzene (1.2 mL, 13 mmol). The mixture was stirred at rt for 4 h, then quenched carefully with 6M HCl. The reaction mixture was washed with dilute aqueous NaOH and brine, dried over sodium sulfate, filtered, and concentrated in vacuo to provide the crude product as a light yellow solid. The solid was purified by recrystallization from hexanes to give (4-fluoro-phenyl)- (4- nitrophenyl)-methanone (2.0 g, 65%). 1H NMR (CHCl3-J) δ 8.41-8.32 (m, 5H), 7.90 (m, IH), 7.84 (m, IH), 7.20 (m, IH).
40% To a stirred solution of A1C13 (13.9 g, 104.1 mmol) in DCM (150 mL), 4-nitrobenzoyl chloride (IR, 14.5 g, 78.1 mmol) was added at 0C and stirred at RT for 1H. To the resulting reaction mixture, fluorobenzene (CV, 5.0 g, 52.0 mmol) was added and the reaction was stirred at RT for 2 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was quenched with IN HCl solution, neutralized with 2N NaOH solution and the product was extracted with EtOAc. The combined organic layer was washed with brine, dried over anhydrous Na2S04 and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography using 10% EtOAc/hexane to afford IS (5.0 g, 40.0%) as an off-white solid. 1H NMR (400 MHz, DMSO-d6): _ 8.38 (d, 7 = 8.8 Hz, 2H), 7.96 (d, 7 = 8.8 Hz, 2H), 7.89- 7.86 (m, 2H), 7.46 - 7.41 (m, 2H).

  • 4
  • [ 2195-47-3 ]
  • [ 347-82-0 ]
  • 5
  • [ 2195-47-3 ]
  • [ 1779-49-3 ]
  • [ 38695-20-4 ]
  • 7
  • [ 1817-74-9 ]
  • [ 2195-47-3 ]
  • [ 345-92-6 ]
  • 8
  • [ 2195-47-3 ]
  • [ 10055-40-0 ]
YieldReaction ConditionsOperation in experiment
92% With iron; ammonium chloride; In Isopropyl acetate; at 80℃; for 3h; To a stirred solution of compound IS (5.0 g, 20.0 mmol) in IPA (30 mL), iron powder (5.7 g, 102.0 mmol) and NH4C1 (5.5 g, 102.0 mmol) in water (30 mL) were added and the reaction was stirred at 80C for 3 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The residue was diluted with water and the product was extracted with EtOAc. The combined organic layer was washed with brine, dried over anhydrous Na2S04 and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography using 10% EtOAc/hexane to afford IT (4.0 g, 92.0%) as a light yellow semisolid. 1H NMR (400 MHz, DMSO-d6): _ 7.69 - 7.65 (m, 2H), 7.51 (d, 7 = 8.8 Hz, 2H), 7.34- 7.30 (m, 2H), 6.60 (d, 7 = 8.8 Hz, 2H), 6.17 (s, 2H).
YieldReaction ConditionsOperation in experiment
...presented by the following formula (4) which can respectively correspond to the formula (1) can be obtained. (D) Fluorine substituted aromatic compound represented by the formula (4) corresponding to the hydroxy compound wherein X1 is a substituent of the group (a) in the formula(1): ... 2,2'-difluorobenzophenone, 2,3'-difluorobenzophenone, 2,4'-difluorobenzophenone, 3,3'-difluorobenzophenone, 3,4'-difluorobenzophenone, 4,4'-difluorobenzophenone, 4-methyl-4'-fluorobenzophenone, 4-methoxy-4'-fluorobenzophenone, 4-phenyl-4'-fluorobenzophenone, 4-nitro-4'-fluorobenzophenone, 4-cyano-4'-fluorobenzophenone, 4-chloro-4'-fluorobenzophenone, 4-bromo-4'-fluorobenzophenone, 4-acetyl-4'-fluorobenzophenone, 4-benzoyl-4'-fluorobenzophenone, 4-trifluoromethyl-4'-fluorobenzophenone, ...
  • 10
  • [ 2195-47-3 ]
  • 1-(2,6-dichloro-benzoyl)-3-[4-(4-fluoro-benzoyl)-phenyl]-urea [ No CAS ]
  • 11
  • [ 2195-47-3 ]
  • 1-(2,6-difluoro-benzoyl)-3-[4-(4-fluoro-benzoyl)-phenyl]-urea [ No CAS ]
  • 12
  • [ 101-81-5 ]
  • <(2Z,4E)-2,4-hexadiene>Fe(CO3) complex [ No CAS ]
  • [ 2195-47-3 ]
  • 13
  • [ 2195-47-3 ]
  • [ 133041-80-2 ]
  • 14
  • [ 2195-47-3 ]
  • [ 133041-81-3 ]
  • 15
  • [ 2195-47-3 ]
  • [ 133041-74-4 ]
  • 16
  • [ 2195-47-3 ]
  • [ 133041-73-3 ]
  • 17
  • [ 2195-47-3 ]
  • [ 133041-78-8 ]
  • 18
  • [ 2195-47-3 ]
  • [ 133041-79-9 ]
  • 19
  • [ 2195-47-3 ]
  • [ 133041-72-2 ]
  • 20
  • [ 2195-47-3 ]
  • [ 133041-76-6 ]
  • 21
  • [ 2195-47-3 ]
  • Methanesulfonic acid 2-[[4-(4-acetylamino-benzyl)-phenyl]-(2-methanesulfonyloxy-ethyl)-amino]-ethyl ester [ No CAS ]
  • 22
  • [ 2195-47-3 ]
  • Methanesulfonic acid 2-{(2-methanesulfonyloxy-ethyl)-[4-(4-nitro-benzoyl)-phenyl]-amino}-ethyl ester [ No CAS ]
  • 23
  • [ 2195-47-3 ]
  • [ 133041-75-5 ]
  • 24
  • [ 2195-47-3 ]
  • [ 133041-77-7 ]
  • 25
  • [ 2195-47-3 ]
  • 2-((2-Hydroxy-ethyl)-{4-[4-(quinolin-4-ylamino)-benzyl]-phenyl}-amino)-ethanol [ No CAS ]
  • 26
  • [ 2195-47-3 ]
  • [ 133332-13-5 ]
  • 27
  • [ 2195-47-3 ]
  • {4-[Bis-(2-hydroxy-ethyl)-amino]-phenyl}-[4-(quinolin-4-ylamino)-phenyl]-methanone [ No CAS ]
  • 28
  • [ 2195-47-3 ]
  • [ 133352-66-6 ]
  • 29
  • [ 2195-47-3 ]
  • [ 38695-23-7 ]
YieldReaction ConditionsOperation in experiment
14% With triethylsilane; trifluorormethanesulfonic acid; In dichloromethane; at 20℃; for 2h; Step 2. Preparation of l-fluoro-4 (4-nitrobenzyl) benzene; To a solution of (4-fluoro-phenyl)- (4-nitrophenyl)-methanone (2.0 g, 8.2 mmol) in dichloromethane (16 mL) at 0 C was added trifluromethanesulfonic acid (1.4 mL, 16 mmol) in dichloromethane (16 mL). A solution of triethylsilane (2 mL, 12 mmol) in dichloromethane (16 mL) was subsequently added dropwise, resulting in an exotherm. After 5 min, additional trifluoromethanesulfonic acid (1.4 mL, 16 mmol) was added, followed by triethylsilane (2.0 mL, 12 mmol). The reaction mixture was stirred at rt for 2h, then poured into cold saturated sodium bicarbonate and extracted several times with dichloromethane. The combined organic extracts were dried over sodium sulfate and concentrated in vacuo. Purification by column chromatography eluting with 0-10% ethyl acetate in hexanes, gave the desired product as a white solid (260 mg, 14%). 1H NMR (CHCl3-d) 8 8.14 (m, 2H), 7.31 (m, 2H), 7.12 (m, 2H), 7.01 (m, 2H), 4.06 (s, 2H).
14% With triethylsilane; trifluorormethanesulfonic acid; In dichloromethane; at 0 - 20℃; for 2h; To a solution of (4-fluoro-phenyl)-(4-nitrophenyl)-methanone (2.0 g, 8.2 mmol) in dichloromethane (16 mL) at 0 0C was added trifluromethanesulfonic acid (1.4 mL, 16 mmol) in dichloromethane (16 mL). A solution of triethylsilane (2 mL, 12 mmol) in dichloromethane (16 mL) was subsequently added drop wise, resulting in an exotherm. After 5 min, additional trifluoromethanesulfonic acid (1.4 mL, 16 mmol) was added, followed by triethylsilane (2.0 mL, 12 mmol). The reaction mixture was stirred at rt for 2h, then poured into cold saturated sodium bicarbonate and extracted several times with dichloromethane. The combined organic extracts were dried over sodium sulfate and concentrated in vacuo. Purification by column chromatography eluting with 0-10% ethyl acetate in hexanes, gave the desired product as a white solid (260 mg, 14%). 1H NMR (CHCl3-J) δ 8.14 (m, 2H), 7.31 (m, 2H), 7.12 (m, 2H), 7.01 (m, 2H), 4.06 (s, 2H).
  • 32
  • [ 462-06-6 ]
  • [ 122-04-3 ]
  • [ 2195-47-3 ]
  • [ 77778-85-9 ]
YieldReaction ConditionsOperation in experiment
iron(III) chloride; at 90℃; for 0.483333h;Irradiation;Product distribution / selectivity; In these examples, the nature of the deactivated aromatic substrate is changed. The conditions of examples 32 to 35 are reproduced. The aromatic substrate is fluorobenzene in all the examples. The para-isomer of the aromatic ketone obtained is the majority isomer (95 to 100%) over the ortho-isomer.
  • 33
  • [ 110-91-8 ]
  • [ 2195-47-3 ]
  • 4-(4-morpholinobenzoyl)-nitrobenzene [ No CAS ]
YieldReaction ConditionsOperation in experiment
91% With potassium carbonate; In dimethyl sulfoxide; Step 2 A mixture containing <strong>[2195-47-3]4-(4-fluorobenzoyl)-nitrobenzene</strong> (1.96 9, 8 mmol), morpholine (0.84 g, 9.6 mmol), and potassium carbonate (1.33 g, 9.6 mmol) in dimethyl sulfoxide (15 mL) was heated to 100-110 C. for 12 hours. The reaction mixture was cooled to room temperature and diluted with cold water, and filtered. The crude product was washed several times with water and dried to give 4-(4-morpholinobenzoyl)-nitrobenzene (2.28 g, 91%), m.p. 173-175 C., and was used in the next step without further purification.
  • 36
  • [ 2195-47-3 ]
  • 1 ,2,3-Triazole [ No CAS ]
  • [ 853566-88-8 ]
  • [ 853566-93-5 ]
YieldReaction ConditionsOperation in experiment
2.5 g of 1,2,3 triazole were dissolved in 50 ml of DMF and 1.4 g of NaH was added. The mixture was stirred at RT for 1 hour and 8.6 g of (4-Fluoro-phenyl)-(4-nitro-phenyl)-methanone dissolved in DMF were added. The reaction mixture was stirred at 80 C. for 4 hours. DMF was then evaporated and the residue was dissolved in dichloromethane and purify by chromatography on silica gel using dichloromethane/acetone 95/5 as eluant. A first spot was isolated, which after evaporation, gave 0.8 g of the expected product. 1H NMR (DMSO-d6): 8.47 (2H,d), 8.36 (4H,m), 8.05 (4H, m)
  • 37
  • [ 2195-47-3 ]
  • 1 ,2,3-Triazole [ No CAS ]
  • [ 853566-99-1 ]
YieldReaction ConditionsOperation in experiment
1.7 g of 1,2,4 triazole were dissolved in 50 ml of DMF and 1.0 g of NaH was added. The mixture was stirred at RT for 1 hour and 5 g of (4-Fluoro-phenyl)-(4-nitro-phenyl)-methanone dissolved in DMF were added. The reaction mixture was stirred at 80 C. for 4 hours. After return to RT, water was added and the obtained precipitate was dissolved in dichloromethane. A tar was eliminated and, after evaporation, the dichloromethane solution gave 3.2 g of an off-white product. 1H NMR (DMSO-d6): 9.45 (1H,s), 8.40 (2H,d), 8.35 (1H, s), 8.12 (2H, d), 7.98 (4H,m)
  • 38
  • [ 288-32-4 ]
  • [ 2195-47-3 ]
  • [ 853567-05-2 ]
YieldReaction ConditionsOperation in experiment
1.7 g of imidazole were dissolved in 50 ml of DMF and 1.0 g of NaH was added. The mixture was stirred at RT for 1 hour and 5 g of (4-Fluoro-phenyl)-(4-nitro-phenyl)-methanone dissolved in DMF were added. The reaction mixture was stirred at 80 C. for 4 hours. After return to RT, water was added and the obtained precipitate was washed by isopropyl ether to give 4.2 g of a white-off product. 1H NMR (DMSO-d6): 8.39 (2H,d), 7.89 (2H,d), 7.87 (1H, s), 7.86 (2H, d), 7.55 (2H,d), 7.39 (1H,s)
  • 39
  • [ 636-98-6 ]
  • [ 201230-82-2 ]
  • [ 1765-93-1 ]
  • [ 2195-47-3 ]
YieldReaction ConditionsOperation in experiment
85% With potassium phosphate; nickel dichloride; Trimethylacetic acid; at 80℃; under 760.051 Torr; for 15h;Green chemistry; General procedure: Into a 25 ml reaction flask was successively added nickel chloride (0.01 mmol), R2 substituted aryl iodide (table 2) (0.5 mmol), R3 substituted arylboronic acid (0.75 mmol), potassium phosphate (1.0 mmol), pivalic acid (0.25 mmol) and polyethylene glycol 400 (2.0 g), and introduce one atmospheric pressure carbon monoxide. The reaction mixture at 80 C react until starting material reaction complete and cool to room temperature, pressure reducing evaporate the solvent column chromatography separation to obtain the product. The experimental results are set out in table 2.
  • 40
  • [ 1765-93-1 ]
  • [ 122-04-3 ]
  • [ 2195-47-3 ]
YieldReaction ConditionsOperation in experiment
92% With sodium hydroxide; In toluene; at 100℃; for 2h;Schlenk technique; General procedure: An oven-dried Schlenk flask, equipped with a magnetic stir bar, septum and a condenser was charged with acyl chloride (1.0 mmol), arylboronic acid (1.0 mmol), NaOH (4 mmol) and 5.0 mL of toluene. The flask was immersed and stirred in an oil bath at 100 C. Upon complete consumption of starting materials as determined by GC analysis, the water (10.0 mL) was added. The reaction mixture was extracted with diethyl ether (3 × 5.0 mL). The combined organic layer was collected, dried over anhydrous Na2SO4 and concentrated in vacuum to afford product which was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate = 9:1 or 8:2).
  • 41
  • [ 98-95-3 ]
  • [ 587-88-2 ]
  • [ 2195-47-3 ]
 

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