反应详情

2d (5.88 g, 37 mmol) is stirred in acetic anhydride (30 ml) at ambient temperature for 1 hour. The mixture is poured into ice-water and rendered alkaline by addition of aqueous sodium hydroxide (12M). The product is filtered off, washed with water and dried to yield 2e (6.34 g, 85%). Mp 181-183° C.

1. filtrationThe product is filtered off
2. washwashed with water
3. customdried