反应详情

A solution of sec-butyl acetoacetate (5.0 g, 0.031 moles), 3-nitrobenzaldehyde (4.7 g, 0.031 moles), 0.5 ml of piperidine and 0.5 ml of acetic acid in 50 ml of benzene was heated at reflux for one hour collecting 1 eq. of water. The cooled solution, in ethyl acetate, was washed with sodium hydrogen carbonate, potassium hydrogen sulfate and brine, dried and evaporated to give 9.2 g of the title A compound as a dark oil.

1. temperatureat reflux for one hour
2. washThe cooled solution, in ethyl acetate, was washed with sodium hydrogen carbonate, potassium hydrogen sulfate and brine
3. customdried
4. customevaporated