反应详情

To a solution of 25 g (0.112 mole) of 6-methoxy-3 -phenylbenzofuran in 400 ml of dichloromethane is added over 1 hour dropwise with stirring 17.9 g (0.112 mole) of bromine in 20 ml of dichloromethane. The solution is washed with 200 ml of 10% aqueous sodium acetate, dried and evaporated to provide 2-bromo-6-methoxy-3-phenylbenzofuran as a dark oil.

1. washThe solution is washed with 200 ml of 10% aqueous sodium acetate
2. customdried
3. customevaporated