一种合成双亚苄基环戊酮的新方法

A Novel Preparation Method of Bis (Substituted Benzylidene) Cyclopenpanones

芳醛与环戊酮在碳酸钠水溶液中 ,用微波辐射相转移催化法合成α,α -双亚苄基环戊酮 ,与已有方法相比 ,该法反应时间短 ,产率高 ,能耗低 ,环境友好 ,后处理也极为简便。

The microwave irradiation and phase transfer catalysis combined aqueous aldol condensations was proved as an efficient and clean route for preparing α,α’-bis(substituted benzylidene)cyclopenpanones.Compared with the present method in the literature, this new method has the advantages of short reaction time (0.5～7 min) and excellent yields (80%～99%), low energy consumption, environment benign,easier postprocessing.