反应详情

105.0 g (1.05 mol) of ethyl acrylate is added dropwise to a mixture of 37.3 g (211 mmol) of 2,4-dichlorophenylhydrazine, 18.6 g (273 mmol) of sodium ethoxide, 150 ml of ethanol and 150 ml of toluene and the mixture is subsequently stirred for 1 hour. The reaction mixture is evaporated to 100 ml and the residue is taken up in water. The organic phase is separated off and extracted with 5% strength NaOH. The combined aqueous phases are adjusted to a pH of 6.5 and the solid formed is filtered off with suction, washed with water and dried under reduced pressure.

1. customThe reaction mixture is evaporated to 100 ml
2. customThe organic phase is separated off
3. extractionextracted with 5% strength NaOH
4. customthe solid formed
5. filtrationis filtered off with suction
6. washwashed with water
7. customdried under reduced pressure