A process for the preparation of N,N-bis(3,4-dimethylphenyl)-4-biphenylamine which comprises the reaction of N-(3,4-dimethylphenyl)-4-biphenylamine and an iodoxylene in the presence of a ligated copper catalyst, and wherein the ligand is selected from the group consisting of monodentate tertiary amines and bidentate tertiary amines, and which reaction is accomplished at a temperature of from about 120.degree. C. to about 150.degree. C.
一种制备N,N-双(3,4-二甲基苯基)-4-
联苯胺的方法,包括在配位
铜催化剂的存在下,将N-(3,4-二甲基苯基)-4-
联苯胺和
碘代二苯
乙烷反应,其中
配体选自单齿三级胺和双齿三级胺的群体,并且该反应在约120℃至约150℃的温度下完成。