反应详情

To a solution of 4 (0.32 g, 1 mmol) and pyridine (0.12 mL, 1.5 mmol) in acetonitrile (4 mL, 0.25M), phenyl chloroformate (0.16 mL, 1.2 mmol) was added at 0° C. and the reaction mixture was stirred at room temperature for overnight. Then water was added and the mixture was stirred for 30 min. The precipitated white solid was filtered and the solid was washed with acetonitrile and then dried under vacuum to obtain compound 5 (0.35 g, 83%).

1. stirringthe mixture was stirred for 30 min
2. filtrationThe precipitated white solid was filtered
3. washthe solid was washed with acetonitrile
4. customdried under vacuum