反应详情

A solution of 30.2 g (0.126 moles) of 3,5-dimethoxy-4-ethoxybenzoic acid hydrazide in 250 cm3 of anhydrous ethanol is added to a solution of 21.8 g (0.126 moles) of 2-phenylmethylenecyclopentan-1-one in 50 cm3 of ethanol. The reaction mixture is boiled for one hour, then cooled. The separated crystals are filtered off and dried. Yield: 39.78 g (80.0%). M.p.: 239°-240° C.

1. temperaturecooled
2. filtrationThe separated crystals are filtered off
3. customdried