反应详情

温度

0 °C

To a solution of tert-butyl 2-(2-hydroxy-N-methylbenzamido)ethylcarbamate (0.2 g, 0.68 mmol) in CH2Cl2 (5 mL) at 0° C. was added trifluoroacetic acid (1.8 mL, 23.4 mmol). The mixture was stirred (0° C., 16 h), concentrated under reduced pressure and neutralized with saturated NH3 in CH3OH. The mixture was concentrated under reduced pressure to afford N-(2-aminoethyl)-2-hydroxy-N-methylbenzamide as a colorless oil (0.5 g). This compound was used in the next step without further purification. Mass calculated for C10H14N2O2=194.23; found: [M+H]+=195.1.

1. concentrationconcentrated under reduced pressure and neutralized with saturated NH3 in CH3OH
2. concentrationThe mixture was concentrated under reduced pressure