(2S)-2-hydroxy-2-phenylacetamide

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

実験手順: To a solution of methylamine (40% in water, 3.8 equivalents) is added, at ambient temperature, methyl (S)-mandelate (1.0 equivalent; commercially available), while keeping the temperature below 30° C. and stirred at ambient temperature until full conversion is achieved. Excess methylamine is removed by azeotropic distillation. Alternatively, after neutralisation with aqueous hydrochloric acid the aqueous solution is saturated with sodium chloride and extracted several times with dichloromethane. The organic layers are combined and the water is removed by azeotropic distillation. the temperature below 30° C. Excess methylamine is removed by azeotropic distillation extracted several times with dichloromethane the water is removed by azeotropic distillation

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

実験手順: To a solution of methylamine (40% in water, 3.8 equivalents) is added, at ambient temperature, methyl (S)-mandelate (1.0 equivalent; commercially available), while keeping the temperature below 30° C. and stirred at ambient temperature until full conversion is achieved. After neutralisation with aqueous hydrochloric acid the aqueous solution is saturated with sodium chloride and extracted several times with dichloromethane. The organic layers are combined and the water is removed by azeotropic distillation. the temperature below 30° C. extracted several times with dichloromethane the water is removed by azeotropic distillation

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

実験手順: To a solution of methylamine (40% in water, 3.8 equivalents) is added, at ambient temperature, methyl (S)-mandelate (1.0 equivalent; commercially available), while keeping the temperature below 30° C. and stirred at ambient temperature until full conversion is achieved. Excess methylamine is removed by azeotropic distillation. Alternatively, after neutralisation with aqueous hydrochloric acid the aqueous solution is saturated with sodium chloride and extracted several times with dichloromethane. The organic layers are combined and the water is removed by azeotropic distillation. the temperature below 30° C. Excess methylamine is removed by azeotropic distillation extracted several times with dichloromethane the water is removed by azeotropic distillation