反应详情

A solution of ethyl 3-[4-(2-methoxyphenyl)piperazino]propanoate D1 (8.30 g, 28.38 mmol) and hydrazine monohydrate (8.52 g, 8.3 mL, 170.03 mmol) in ethanol (80 mL) was refluxed for 18 hrs. The solvent was evaporated under reduced pressure, the resulting solid was slurred in 50% acetone in hexane, filtered and dried to afford 6.80 g (87%) 3-[4-(2-methoxyphenyl)piperazino]propanohydrazide D2 as a white solid.

1. customThe solvent was evaporated under reduced pressure
2. filtrationfiltered
3. customdried