Synthetic method of aliphatic diene compound

The invention provides a method for preparing an aliphatic diene compound from cyclohexenecarboxaldehyde through a seasonal reaction. According to the synthetic method disclosed by the invention, the cyclohexene formaldehyde is taken as a substrate, the corresponding aliphatic diene compound is prepared in one step under the action of the aluminum salt and the organic amine, and the separation yield of the method is more than 80%. The method has the advantages of cheap and easily available catalyst aluminum salt and organic amine, stable and controllable reaction process, simple post-treatment and high reaction selectivity, and is suitable for industrial mass production. 本发明提供了一种用环己烯甲醛通过季先科反应制备脂肪族双烯化合物的方法。本发明所述的上述合成方法以环己烯甲醛为底物，在铝盐和有机胺的作用下，一步制备了相应脂肪族双烯化合物，该方法分离收率在80％以上。该方法催化剂铝盐和有机胺便宜易得，反应过程平稳可控，后处理简便，反应选择性高，适合于工业大生产。