反应详情

To a stirred solution of 6-nitrophthalide (2 g.) in ethanol (120 ml.) at room temperature was added dimethylamine (in ethanol 33.3% solution: 50 ml.). After stirring for 5 hours the solvent was evaporated off. The resulting gum was dissolved in ethyl acetate. On addition of petrol 60° - 80° a white solid crystallised out.

1. customwas evaporated off
2. dissolutionThe resulting gum was dissolved in ethyl acetate
3. additionOn addition of petrol 60° - 80° a white solid
4. customcrystallised out