反应详情

0.57 g (10-2 moles) of methyl isocyanate is added, at 25° C., to a solution of 10-2 moles of benzaldehyde (2-cyanoethyl)hydrazone in 30 ml of anhydrous benzene. The mixture is then heated to boiling temperature and left under reflux for 30 minutes. On cooling, the acylated compound crystallizes. It is filtered, drained and then recrystallized from a mixture of benzene and cyclohexane. Its melting point is 145° C. The reaction yield is 48%.

1. temperatureThe mixture is then heated
2. waitleft
3. temperatureunder reflux for 30 minutes
4. temperatureOn cooling
5. customthe acylated compound crystallizes
6. filtrationIt is filtered
7. customrecrystallized from a mixture of benzene and cyclohexane
8. customThe reaction yield is 48%