反应详情

To a solution of the compound obtained in Step C in glacial acetic acid (320 ml) there is added powdered zinc (1 mol). The reaction mixture is stirred overnight at ambient temperature and is then filtered. The filtrate is concentrated, and then 100 ml of water are added. The solid formed is filtered off and then recrystallised from ethanol to yield the title product.

1. filtrationis then filtered
2. concentrationThe filtrate is concentrated
3. addition100 ml of water are added
4. customThe solid formed
5. filtrationis filtered off
6. customrecrystallised from ethanol