反应详情

42.2 g of 4-chlorobenzaldehyde and 5 g of KCN were heated under reflux in 300 ml of a 1:1 mixture of ethanol and water for 6 hours. After cooling, the ethanol was stripped off, the residue was cooled in an ice bath and the supernatant aqueous phase was decanted off. The product was recrystallized from ethanol/petroleum ether and dried. 22 g of the compound Z1 mentioned in the title were obtained.

1. temperatureAfter cooling
2. temperaturethe residue was cooled in an ice bath
3. customthe supernatant aqueous phase was decanted off
4. customThe product was recrystallized from ethanol/petroleum ether
5. customdried
6. customwere obtained