3-氨基-N,N-二甲基-2-苯基丙酰胺

反应条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred 4° C. CH2Cl2 solution (5 mL) containing HNMe2 (180 mg, 4 mmol) under N2, was added 2M AlMe3 in toluene (2 mL, 4 mmol). The reaction was warmed to 20° C. and stirred for five minutes before adding a CH2Cl2 solution (4 mL) containing α-[[(trifluoroacetyl)amino]methyl]benzeneacetic acid, ethyl ester (600 mg, 2.1 mmol). After two days, the reaction was quenched with 1 N aq. HCl, and extracted 3× with EtOAc. The EtOAc fractions were washed with brine, dried over Na2SO4, and concentrated. The crude product was chromatographed on silica gel using 4:1 hexane/EtOAc to elute 380 mg (63%) of the desired trifluoroacetamide which was heated to 60° C. for five hours in MeOH (2 mL) containing 1N aq. NaOH (3 mL). The reaction was diluted with brine, extracted 4× with EtOAc, dried over Na2SO4, and concentrated to yield the title compound as a clear oil (280 mg, 74%). To a stirred 4° C After two days the reaction was quenched with 1 N aq. HCl extracted 3× with EtOAc The EtOAc fractions were washed with brine dried over Na2SO4 concentrated The crude product was chromatographed on silica gel using 4:1 hexane/EtOAc to elute 380 mg (63%) of the desired trifluoroacetamide which was heated to 60° C. for five hours in MeOH (2 mL) containing 1N aq. NaOH (3 mL) The reaction was diluted with brine extracted 4× with EtOAc dried over Na2SO4 concentrated