2-Chloro-6-hydroxybenzonitrile

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3-Chloro-2-cyanophenol (0.55 g, 3.58 mmol) was dissolved in 10 mL of dimethylformamide, and the solution cooled to 0° C. Sodium hydride (0.158 g, 3.94 mmol 60% in oil), washed with hexane and dimethylformamide, was added to cooled solution over a period of one minute. After stirring for 10 minutes at room temperature, (2R)-(-)-glycidyl 3-nitrobenzenesulfonate was added and stirred 16 hours. The reaction was poured into ether and dilute sodium hydroxide. The ether layer was separated and the aqueous layer extracted once more with ether. The combined ether extracts were washed with water and saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to give 0.7 g of (R)-3-chloro-2-cyanophenyl glycidyl ether. was added to cooled solution over a period of one minute stirred 16 hours The ether layer was separated the aqueous layer extracted once more with ether The combined ether extracts were washed with water and saturated brine dried over anhydrous sodium sulfate filtered concentrated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 18-crown-6 (3.96 g, 15 mmol) in 30 mL of acetonitrile were added dry potassium acetate (1.47 g, 15 mmol) and 2-chloro-6-fluorobenzonitrile (1.56 g, 10 mmol). The reaction was refluxed under nitrogen for 25 hours, then cooled to room temperature. Sodium hydroxide (2 mL of a 10M solution, 20 mmol) and water (5 mL) were added, and the reaction stirred at room temperature for two hours. The acetonitrile was removed on a rotary evaporator, and the residue was taken up in ether and water. The basic aqueous layer was washed three times with ether. The aqueous layer was then made acidic with HCl, and the product extracted into ether. The ether layer was dried over anhydrous sodium sulfate, filtered, and concentrated. The resulting solid was crystallized from water/methanol to yield 1.11 g of 3-chloro-2-cyanophenol. The reaction was refluxed under nitrogen for 25 hours The acetonitrile was removed on a rotary evaporator The basic aqueous layer was washed three times with ether made acidic with HCl, and the product extracted into ether The ether layer was dried over anhydrous sodium sulfate filtered concentrated The resulting solid was crystallized from water/methanol

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3-Chloro-2-cyanophenol (0.55 g, 3.58 mmol) was dissolved in 10 mL of dimethylformamide, and the solution cooled to 0° C. Sodium hydride (0.158 g, 3.94 mmol 60% in oil), washed with hexane and dimethylformamide, was added to cooled solution over a period of one minute. After stirring for 10 minutes at room temperature, (2R)-(−)-glycidyl 3-nitrobenzenesulfonate was added and stirred 16 hours. The reaction was poured into ether and dilute sodium hydroxide. The ether layer was separated and the aqueous layer extracted once more with ether. The combined ether extracts were washed with water and saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to give 0.7 g of (R)-3-chloro-2-cyanophenyl glycidyl ether. was added to cooled solution over a period of one minute stirred 16 hours The ether layer was separated the aqueous layer extracted once more with ether The combined ether extracts were washed with water and saturated brine dried over anhydrous sodium sulfate filtered concentrated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 18-crown-6 (3.96 g, 15 mmol) in 30 mL of acetonitrile were added dry potassium acetate (1.47 g, 15 mmol) and 2-chloro-6-fluorobenzonitrile (1.56 g, 10 mmol). The reaction was refluxed under nitrogen for 25 hours, then cooled to room temperature. Sodium hydroxide (2 mL of a 10 M solution, 20 mmol) and water (5 mL) were added, and the reaction stirred at room temperature for two hours. The acetonitrile was removed on a rotary evaporator, and the residue was taken up in ether and water. The basic aqueous layer was washed three times with ether. The aqueous layer was then made acidic with HCl, and the product extracted into ether. The ether layer was dried over anhydrous sodium sulfate, filtered, and concentrated. The resulting solid was crystallized from water/methanol to yield 1.11 g of 3-chloro-2-cyanophenol. The reaction was refluxed under nitrogen for 25 hours The acetonitrile was removed on a rotary evaporator The basic aqueous layer was washed three times with ether made acidic with HCl, and the product extracted into ether The ether layer was dried over anhydrous sodium sulfate filtered concentrated The resulting solid was crystallized from water/methanol

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 18-crown-6 (3.96 g, 15 mmol) in 30 mL of acetonitrile were added dry potassium acetate (1.47 g, 15 mmol) and 2-chloro-6-fluorobenzonitrile (1.56 g, 10 mmol). The reaction was refluxed under nitrogen for 25 hours, then cooled to room temperature. Sodium hydroxide (2 mL of a 10 M solution, 20 mmol) and water (5 mL) were added, and the reaction stirred at room temperature for two hours. The acetonitrile was removed on a rotary evaporator, and the residue was taken up in ether and water. The basic aqueous layer was washed three times with ether. The aqueous layer was then made acidic with HCl, and the product extracted into ether. The ether layer was dried over anhydrous sodium sulfate, filtered, and concentrated. The resulting solid was crystallized from water/methanol to yield 1.11 g of 3-chloro-2-cyanophenol. The reaction was refluxed under nitrogen for 25 hours The acetonitrile was removed on a rotary evaporator The basic aqueous layer was washed three times with ether made acidic with HCl, and the product extracted into ether The ether layer was dried over anhydrous sodium sulfate filtered concentrated The resulting solid was crystallized from water/methanol

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-cyano-3-chlorophenol(2.8 g, 18.3 mmol) was dissolved in methylene chloride(40 ml) followed by the addition of sodium nitrate (1.70 g, 20.1 mmol). The addition of sulfuric acid (15 ml/ 3M) is then made, followed by addition of a catalytic amount of sodium nitrite. The mixture is allowed to stir. After 24 hrs, the reaction mixture is diluted with methylene chloride and extracted with water. The organic layer is dried over MgSO4 and filtered. The solvent was evaporated and chromatography of the resulting solid on silica gel (4%MeOH/CH2Cl2) gave the desired product(1.05 g, 29.2%). 1H NMR (CD3COCD3): δ8.09 (d,1H), 6.55 (d, 1H). extracted with water The organic layer is dried over MgSO4 filtered The solvent was evaporated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Benzoyl-6-chlorobenzonitrile (10.0 g, 41 mmol) was dissolved in methylene chloride(40 ml) and trifluoroacetic acid(40 ml) and stirred at room temperature for 24 hrs. The reaction mixture is diluted with methylene chloride and extracted with water. The organic layer is dried over MgSO4 and filtered. The solvent was evaporated and chromatography of the resulting solid on silica gel (4%MeOH/CHCl2) gave the desired product(4.2 g, 67%). 1H NMR (CD3COCD3): δ10.31 (s,1H), 7.51 (t, 1H), 7.11 (d, 1H) 7.05 (d, 1H). extracted with water The organic layer is dried over MgSO4 filtered The solvent was evaporated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Benzoyl-6-chlorobenzonitrile (10.0 g, 41 mmol) was dissolved in methylene chloride(40 ml) and trifluoroacetic acid(40 ml) and stirred at room temperature for 24 hrs. The reaction mixture is diluted with methylene chloride and extracted with water. The organic layer is dried over MgSO4 and filtered. The solvent was evaporated and chromatography of the resulting solid on silica gel (4%MeOH/CHCl2) gave the desired product(4.2 g, 67%). 1H NMR (CD3COCD3): δ10.31 (s,1H), 7.51 (t, 1H), 7.11 (d, 1H) 7.05 (d, 1H). extracted with water The organic layer is dried over MgSO4 filtered The solvent was evaporated

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3-Chloro-2-cyanophenol (0.55 g, 3.58 mmol) was dissolved in 10 mL of dimethylformamide, and the solution cooled to 0° C. Sodium hydride (0.158 g, 3.94 mmol 60% in oil), washed with hexane and dimethylformamide, was added to cooled solution over a period of one minute. After stirring for 10 minutes at room temperature, (2R)-(-)-glycidyl 3-nitrobenzenesulfonate was added and stirred 16 hours. The reaction was poured into ether and dilute sodium hydroxide. The ether layer was separated and the aqueous layer extracted once more with ether. The combined ether extracts were washed with water and saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to give 0.7 g of (R)-3-chloro-2-cyanophenyl glycidyl ether. was added to cooled solution over a period of one minute stirred 16 hours The ether layer was separated the aqueous layer extracted once more with ether The combined ether extracts were washed with water and saturated brine dried over anhydrous sodium sulfate filtered concentrated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 18-crown-6 (3.96 g, 15 mmol) in 30 mL of acetonitrile were added dry potassium acetate (1.47 g, 15 mmol) and 2-chloro-6-fluorobenzonitrile (1.56 g, 10 mmol). The reaction was refluxed under nitrogen for 25 hours, then cooled to room temperature. Sodium hydroxide (2 mL of a 10M solution, 20 mmol) and water (5 mL) were added, and the reaction stirred at room temperature for two hours. The acetonitrile was removed on a rotary evaporator, and the residue was taken up in ether and water. The basic aqueous layer was washed three times with ether. The aqueous layer was then made acidic with HCl, and the product extracted into ether. The ether layer was dried over anhydrous sodium sulfate, filtered, and concentrated. The resulting solid was crystallized from water/methanol to yield 1.11 g of 3-chloro-2-cyanophenol. The reaction was refluxed under nitrogen for 25 hours The acetonitrile was removed on a rotary evaporator The basic aqueous layer was washed three times with ether made acidic with HCl, and the product extracted into ether The ether layer was dried over anhydrous sodium sulfate filtered concentrated The resulting solid was crystallized from water/methanol

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3-Chloro-2-cyanophenol (0.55 g, 3.58 mmol) was dissolved in 10 mL of dimethylformamide, and the solution cooled to 0° C. Sodium hydride (0.158 g, 3.94 mmol 60% in oil), washed with hexane and dimethylformamide, was added to cooled solution over a period of one minute. After stirring for 10 minutes at room temperature, (2R)-(−)-glycidyl 3-nitrobenzenesulfonate was added and stirred 16 hours. The reaction was poured into ether and dilute sodium hydroxide. The ether layer was separated and the aqueous layer extracted once more with ether. The combined ether extracts were washed with water and saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to give 0.7 g of (R)-3-chloro-2-cyanophenyl glycidyl ether. was added to cooled solution over a period of one minute stirred 16 hours The ether layer was separated the aqueous layer extracted once more with ether The combined ether extracts were washed with water and saturated brine dried over anhydrous sodium sulfate filtered concentrated

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 3-Chloro-2-cyanophenol (0.55 g, 3.58 mmol) was dissolved in 10 mL of dimethylformamide, and the solution cooled to 0° C. Sodium hydride (0.158 g, 3.94 mmol 60% in oil), washed with hexane and dimethylformamide, was added to cooled solution over a period of one minute. After stirring for 10 minutes at room temperature, (2R)-(−)-glycidyl 3-nitrobenzenesulfonate was added and stirred 16 hours. The reaction was poured into ether and dilute sodium hydroxide. The ether layer was separated and the aqueous layer extracted once more with ether. The combined ether extracts were washed with water and saturated brine, dried over anhydrous sodium sulfate, filtered, and concentrated to give 0.7 g of (R)-3-chloro-2-cyanophenyl glycidyl ether. was added to cooled solution over a period of one minute stirred 16 hours The ether layer was separated the aqueous layer extracted once more with ether The combined ether extracts were washed with water and saturated brine dried over anhydrous sodium sulfate filtered concentrated