ethyl 3-(2-fluorophenyl)propanoate

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: A mixture of ethyl 3-(2-fluorophenyl)propionate (25.54 g, 0.130 mol) and a 50% aqueous solution of sodium hydroxide (30 mL) in water (130 mL) was refluxed for 2 h. After cooling the mixture was washed with diethyl ether (2×100 mL). The aqueous phase was chilled in an ice bath, and the pH was adjusted to 3 with hydrochloric acid . The white precipitate which formed was collected by filtration, washed repeatedly with water, and dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)propionic acid as a white solid; m.p., 72°-74° C. This material was used without further purification. After cooling the mixture was washed with diethyl ether (2×100 mL) The aqueous phase was chilled in an ice bath The white precipitate which formed was collected by filtration washed repeatedly with water dried in a vacuum at 60° C. for 18 h

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

実験手順: A mixture of ethyl 2-fluorocinnamate (29.25 g, 0.176 mol) and platinum oxide hydrate (0.25, EM Scientific) in 95% ethanol (150 mL) was placed on a Parr hydrogenation apparatus and shaken under 2-4 atm at hydrogen pressure. After the appropriate amount of hydrogen was consumed, the catalyst was removed by filtration, and the filtrate was concentrated in vacuo to give 29.39 g (99%) of crude ethyl 3-(2-fluorophenyl)propionate. This material was used without further purification. After the appropriate amount of hydrogen was consumed the catalyst was removed by filtration the filtrate was concentrated in vacuo

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

実験手順: A mixture of ethyl 3-(2-fluorophenyl)propionate (25.54 g, 0.130 mol) and a 50% aqueous solution of sodium hydroxide (30 mL) in water (130 mL) was refluxed for 2 h. After cooling the mixture was washed with diethyl ether (2×100 mL). The aqueous phase was chilled in an ice bath, and the pH was adjusted to 3 with hydrochloric acid . The white precipitate which formed was collected by filtration, washed repeatedly with water, and dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)propionic acid as a white solid; m.p., 72°-74° C. This material was used without further purification. After cooling the mixture was washed with diethyl ether (2×100 mL) The aqueous phase was chilled in an ice bath The white precipitate which formed was collected by filtration washed repeatedly with water dried in a vacuum at 60° C. for 18 h

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

実験手順: A mixture of ethyl 3-(2-fluorophenyl)propionate (25.54 g, 0.130 mol) and a 50% aqueous solution of sodium hydroxide (30 mL) in water (130 mL) was refluxed for 2 h. After cooling the mixture was washed with diethyl ether (2×100 mL). The aqueous phase was chilled in an ice bath, and the pH was adjusted to 3 with hydrochloric acid . The white precipitate which formed was collected by filtration, washed repeatedly with water, and dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)propionic acid as a white solid; m.p., 72°-74° C. This material was used without further purification. After cooling the mixture was washed with diethyl ether (2×100 mL) The aqueous phase was chilled in an ice bath The white precipitate which formed was collected by filtration washed repeatedly with water dried in a vacuum at 60° C. for 18 h

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

実験手順: A mixture of ethyl 2-fluorocinnamate (29.25 g, 0.176 mol) and platinum oxide hydrate (0.25, EM Scientific) in 95% ethanol (150 mL) was placed on a Parr hydrogenation apparatus and shaken under 2-4 atm at hydrogen pressure. After the appropriate amount of hydrogen was consumed, the catalyst was removed by filtration, and the filtrate was concentrated in vacuo to give 29.39 g (99%) of crude ethyl 3-(2-fluorophenyl)propionate. This material was used without further purification. After the appropriate amount of hydrogen was consumed the catalyst was removed by filtration the filtrate was concentrated in vacuo

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: A mixture of ethyl 3-(2-fluorophenyl)propionate (25.54 g, 0.130 mol) and a 50% aqueous solution of sodium hydroxide (30 mL) in water (130 mL) was refluxed for 2 h. After cooling the mixture was washed with diethyl ether (2×100 mL). The aqueous phase was chilled in an ice bath, and the pH was adjusted to 3 with hydrochloric acid. The white precipitate which formed was collected by filtration, washed repeatedly with water, and dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)prionic acid as a white solid; m.p., 72-74° C. This material was used without further purification. After cooling the mixture was washed with diethyl ether (2×100 mL) The aqueous phase was chilled in an ice bath The white precipitate which formed was collected by filtration washed repeatedly with water dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)prionic acid as a white solid m.p., 72-74° C This material was used without further purification

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

実験手順: A mixture of ethyl 2-fluorocinnamate (29.25 g, 0.176 mol) and platinum oxide hydrate (0.25, EM Scientific) in 95% ethanol (150 mL) was placed on a Parr hydrogenation apparatus and shaken under 2-4 atm at hydrogen pressure. After the appropriate amount of hydrogen was consumed, the catalyst was removed by filtration, and the filtrate was concentrated in vacuo to give 29.39 g (99%) of crude ethyl 3-(2-fluorophenyl)propionate. This material was used without further purification. After the appropriate amount of hydrogen was consumed the catalyst was removed by filtration the filtrate was concentrated in vacuo

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

実験手順: A mixture of ethyl 3-(2-fluorophenyl)propionate (25.54 g, 0.130 mol) and a 50% aqueous solution of sodium hydroxide (30 mL) in water (130 mL) was refluxed for 2 h. After cooling the mixture was washed with diethyl ether (2×100 mL). The aqueous phase was chilled in an ice bath, and the pH was adjusted to 3 with hydrochloric acid . The white precipitate which formed was collected by filtration, washed repeatedly with water, and dried in a vacuum at 60° C. for 18 h to give 18.66 g (85%) of 3-(2-fluorophenyl)propionic acid as a white solid; m.p., 72°-74° C. This material was used without further purification. After cooling the mixture was washed with diethyl ether (2×100 mL) The aqueous phase was chilled in an ice bath The white precipitate which formed was collected by filtration washed repeatedly with water dried in a vacuum at 60° C. for 18 h

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

実験手順: A mixture of ethyl 2-fluorocinnamate (29.25 g, 0.176 mol) and platinum oxide hydrate (0.25, EM Scientific) in 95% ethanol (150 mL) was placed on a Parr hydrogenation apparatus and shaken under 2-4 atm at hydrogen pressure. After the appropriate amount of hydrogen was consumed, the catalyst was removed by filtration, and the filtrate was concentrated in vacuo to give 29.39 g (99%) of crude ethyl 3-(2-fluorophenyl)propionate. This material was used without further purification. After the appropriate amount of hydrogen was consumed the catalyst was removed by filtration the filtrate was concentrated in vacuo