反应详情

60 g of (1a) were suspended in 660 ml of ethanol, and gaseous HCl was passed in for 1 h. The reaction mixture was then heated under reflux for 4 h and then cooled and concentrated. 62 g of a white solid were obtained.

1. customwas passed in for 1 h
2. temperatureThe reaction mixture was then heated
3. temperatureunder reflux for 4 h
4. temperaturecooled
5. concentrationconcentrated