申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0588060A2
公开(公告)日:1994-03-23
[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。