反应详情

温度

0 °C

To 62a (3.22 g, 20 mmol) in 10 mL of toluene, was added triethylamine (2.79 mL, 20 mmol). The mixture was cooled to 0° C. and acetic anhydride (1.89 mL, 20 mmol) was added dropwise. The mixture was warmed to room temperature and stirred overnight. It was then concentrated on high vacuum to give crude 62b.

1. temperatureThe mixture was warmed to room temperature
2. concentrationIt was then concentrated on high vacuum