[Constitution] A method for preparing diphenylamine from cyclohexanone and aniline by adding dropwise nitrobenzene and cyclohexanone to a reaction system in which a hydrogen transfer catalyst and a sulfur-free polar solvent are present and aniline is being formed from nitrobenzene as a hydrogen acceptor.
[Effect] Diphenylamine can be obtained in a high yield under moderate reaction conditions.
[制法]一种从
环己酮和
苯胺制备
二苯胺的方法,方法是将
硝基苯和
环己酮滴加到存在氢转移催化剂和无
硫极性溶剂的反应体系中,
苯胺作为氢接受体从
硝基苯中生成。
[效果]在中等反应条件下,可以高产率获得
二苯胺。