基于磷钨酸离子液体催化的N-苯基马来酰亚胺的合成研究

The Synthesis of N-Phenylmaleimide Catalyzed by Heteropolyanion-Based Ionic Liquids

以马来酸做原料,以磷钨酸阴离子离子液体为催化剂,合成了N-苯基马来酰亚胺,反应条件温和,操作简便,反应产率和纯度较高,反应完成后,可以通过简单的过滤方法回收催化剂.催化剂可以循环使用6次,产率没有明显降低.

N-phenylmaleimide was ynteslzed in good yields andhigh purity from the corresponding realeamic acids using heteropolyanion-based ionic liquid as catalyst. After the reaction was finished, the reuse of the catalyst was carried out by the filtration. The yields remained unchanged even after the catalyst had been recycled six times.