反应详情

2.10 g (4.06 mmole) of this ester were dissolved in 20 ml of dimethylformamide, and then 2.00 g (40.0 mmole) of hydrazine hydrate were added; the mixture was stirred overnight at room temperature. This reaction product was condensed by evaporation under reduced pressure, and then water was added to the residue. The precipitating crystals were collected by filtration, washed with hexane and diethyl ether and dried, to yield 1.90 g (90.5%) of the title compound.

1. customcondensed
2. customby evaporation under reduced pressure
3. additionwater was added to the residue
4. filtrationThe precipitating crystals were collected by filtration
5. washwashed with hexane and diethyl ether
6. customdried