反应详情

温度

55 °C

To a solution of benzylamine (10.0 mL, 91.6 mmol) in 95% MeOH-water (180 mL) was added methyl 3-methyl-2-butenoate (12.3 mL, 100.8 mmol). The solution was heated at 55° C. and stirred for 2 weeks. The solution was then cooled to room temperature, concentrated in vacuo, and the residue purified by gradient silica gel chromatography (0% to 100% EtOAc in hexanes; 1% Et3N) to provide methyl 3-methyl-3-[(phenylmethyl)amino]butanoate (5.5893 g, 28%) as a pale yellow oil. LCMS: (M+H)+: 222.1.

1. temperatureThe solution was then cooled to room temperature
2. concentrationconcentrated in vacuo
3. customthe residue purified by gradient silica gel chromatography (0% to 100% EtOAc in hexanes; 1% Et3N)