反应详情

1.08 g (10-2 moles) of ethyl chloroformate in solution in 5 ml of anhydrous ethyl acetate are added dropwise to a solution containing 10-2 moles of benzaldehyde (2-cyanoethyl)hydrazone and 0.79 g (10-2 moles) of anhydrous pyridine in 20 ml of anhydrous ethyl acetate, with stirring in the cold. The reaction mixture is slowly heated to reflux temperature and left stirring for 2 hours and then filtered hot.

1. temperatureThe reaction mixture is slowly heated
2. temperatureto reflux temperature
3. waitleft
4. stirringstirring for 2 hours
5. filtrationfiltered hot