N-氰乙基苯胺的合成研究

A Study on the Synthesis of N-Cyanoethyl Aniline

报导了以三氯化铝为催化剂、低温条件下合成N-氰乙基苯胺的新工艺。以苯胺和丙烯腈为原料，加入少量对苯二酚，在水介质中75℃～80℃回流24小时合成标题化合物，收率96％，纯度96％。其收率随三氯化铝用量的增加而提高，在7％时达到最高；反应温度超过80℃时收率有所降低，当苯胺与丙烯腈的摩尔比为1：1.1时标题化合物的收率最高。

N-cyanotype ethyl aniline was syrithesized from aniline and acrylonitrile in water at relative low temperature in the presence of AlCl_3 as a catalyst. The optimum conditions were that the molar ratio of aniline to acrylonitrile was 1 : 1.1, the dosage of AlCl_3 was 7% (based on aniline by weight), the reaction temperature was 70-80℃ and the reaction time was 24hours. The yield of the product was 96% and the purity was over 96%.