3-CHLORO-4-METHOXYBENZENEACETONITRILE

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1 H), 7.20 (dd, J=2.4, 8.4 Hz, 1 H), 6.92 (d, J=8.4 Hz, 1 H), 3.91 (s, 3 H), 3.68 (s, 2 H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1 H), 7.20 (dd, J=2.4, 8.4 Hz, 1 H), 6.92 (d, J=8.4 Hz, 1 H), 3.91 (s, 3 H), 3.68 (s, 2 H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. and the mixture was stirred for 10 minutes. A solution of 3-chloro-4-methoxy-benzaldehyde (1.7 g, 10 mmol) in THF (10 mL) was added dropwise, and the reaction was stirred at −78° C. for 1.5 hours. To the cooled reaction mixture was added methanol (10 mL) and the mixture was heated at reflux for 30 minutes. The solvent were evaporated to give a crude residue that was dissolved in water (20 mL). The aqueous phase was extracted with ethyl acetate (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give a crude product that was purified by column chromatography (petroleum ether/ethyl acetate 10:1) to yield 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. the reaction was stirred at −78° C. for 1.5 hours To the cooled reaction mixture the mixture was heated at reflux for 30 minutes The solvent were evaporated to give a crude residue that The aqueous phase was extracted with ethyl acetate (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give a crude product that was purified by column chromatography (petroleum ether/ethyl acetate 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.7 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.7 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.7 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (petroleum ether/ethyl acetate 10:1)

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)

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

実験手順: 145 grams of 3-chloro-4-methoxybenzyl chloride was added to a solution comprising 40.6 grams of sodium cyanide in 230 ml of dimethylsulfoxide over a 40 minute time period at a temperature within the range of 40°-45° C. The reaction mixture was then stirred at this temperature for 6 hours and poured into 800 ml of water, the separated oil being extracted with 3 200 ml portions of ether. The ethereal solution was next washed with a dilute (1:1) hydrochloric acid solution in two 100 ml portions, with two 100 ml portions of water and dried over magnesium sulfate. The ether was then driven off, yielding 136.5 grams of crystalline 3-chloro-4-methoxy-phenylacetonitrile, m.p. 54°-56° C., which was refluxed for 16 hours with 420 ml of 48% hydrobromic acid. Following, the reaction mixture was cooled to -5° C. and, after two hours at this temperature, the precipitate filtered, triturated with ether in three 400 ml portions, dried over magnesium sulfate and boiled down to yield 137 grams (97.7%) of 3-chloro-4-hydroxyphenyl acetic acid, m.p. 101°-104° C. over a 40 minute within the range of 40°-45° C the separated oil being extracted with 3 200 ml portions of ether next washed with a dilute (1:1) hydrochloric acid solution in two 100 ml portions with two 100 ml portions of water and dried over magnesium sulfate

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)

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

実験手順: 145 grams of 3-chloro-4-methoxybenzyl chloride was added to a solution comprising 40.6 grams of sodium cyanide in 230 ml of dimethylsulfoxide over a 40 minute time period at a temperature within the range of 40°-45° C. The reaction mixture was then stirred at this temperature for 6 hours and poured into 800 ml of water, the separated oil being extracted with 3 200 ml portions of ether. The ethereal solution was next washed with a dilute (1:1) hydrochloric acid solution in two 100 ml portions, with two 100 ml portions of water and dried over magnesium sulfate. The ether was then driven off, yielding 136.5 grams of crystalline 3-chloro-4-methoxy-phenylacetonitrile, m.p. 54°-56° C., which was refluxed for 16 hours with 420 ml of 48% hydrobromic acid. Following, the reaction mixture was cooled to -5° C. and, after two hours at this temperature, the precipitate filtered, triturated with ether in three 400 ml portions, dried over magnesium sulfate and boiled down to yield 137 grams (97.7%) of 3-chloro-4-hydroxyphenyl acetic acid, m.p. 101°-104° C. over a 40 minute within the range of 40°-45° C the separated oil being extracted with 3 200 ml portions of ether next washed with a dilute (1:1) hydrochloric acid solution in two 100 ml portions with two 100 ml portions of water and dried over magnesium sulfate

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

実験手順: To a suspension of t-BuOK (4.8 g, 40 mmol) in THF (30 mL) was added a solution of TosMIC (3.9 g, 20 mmol) in THF (10 mL) at −78° C. The mixture was stirred for 10 minutes, treated with a solution of 3-chloro-4-methoxy-benzaldehyde (1.65 g, 10 mmol) in THF (10 mL) dropwise, and continued to stir for 1.5 hours at −78° C. To the cooled reaction mixture was added methanol (10 mL). The mixture was heated at reflux for 30 minutes. Solvent of the reaction mixture was removed to give a crude product, which was dissolved in water (20 mL). The aqueous phase was extracted with EtOAc (20 mL×3). The combined organic layers were dried and evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1) to afford 2-(3-chloro-4-methoxyphenyl)acetonitrile (1.5 g, 83%). 1H NMR (400 MHz, CDCl3) δ 7.33 (d, J=2.4 Hz, 1H), 7.20 (dd, J=2.4, 8.4 Hz, 1H), 6.92 (d, J=8.4 Hz, 1H), 3.91 (s, 3H), 3.68 (s, 2H). 13C NMR (100 MHz, CDCl3) δ 154.8, 129.8, 127.3, 123.0, 122.7, 117.60, 112.4, 56.2, 22.4. to stir for 1.5 hours at −78° C To the cooled reaction mixture The mixture was heated at reflux for 30 minutes Solvent of the reaction mixture was removed to give a crude product, which The aqueous phase was extracted with EtOAc (20 mL×3) The combined organic layers were dried evaporated under reduced pressure to give crude product, which was purified by column chromatography (Petroleum Ether/EtOAc 10:1)