反应详情

A mixture of the crude product from step f, 27.6 g of K2CO3, and 80 ml of dimethylformamide are stirred at room temperature for 16 hours. The reaction mixture is poured on 750 ml ice/water and the precipitate is filtered off with suction, washed with 80 ml of cold methanol and dried.

1. filtrationthe precipitate is filtered off with suction
2. washwashed with 80 ml of cold methanol
3. customdried