超声辐射下,查耳酮与含有活泼亚甲基的化合物诸如硝基甲烷、丙二酸二乙酯和乙酰乙酸乙酯等,在氢氧化钾催化下进行Michael加成,产品收率为75%～98%.该法具有反应时间短,产率高的优点.
Michael addition of chalcone with active methylene compound such as diethyl malonate, ni tromethane and ethyl acetoacetate catalyzed by potassium hydroxide in anhydrous ethanol afforded the corre sponding Michael adducts in 75 %6～98 % yield under ultrasound.
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