文献类型：期刊文献

英文题名：PdCl2(Ph3P)2/Salicylaldimine Catalyzed Diarylation of Anilines with Unactivated Aryl Chlorides

作者：Tao, Xiaochun[1];Li, Lei[1];Zhou, Yu[2];Qian, Xuanying[1];Zhao, Min[1];Cai, Liangzhen[1];Xie, Xiaomin[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

年份：2017

卷号：35

期号：11

起止页码：1749

外文期刊名：CHINESE JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000417173600015)，CCR-EXPANDED(收录号:WOS:000417173600015)】；

基金：We thank the National Natural Science Foundation of China (21272156) for financial support.

语种：英文

外文关键词：palladium; diarylation; aryl chloride; triphenylphosphine; salicyaldimine

摘要：Triphenylphosphine and salicylaldimine could be used as a mixed ligand system to obtain a high catalytic activity for palladium catalyzed diarylation of primary anilines with unactivated aryl chlorides by the synergistic effect of ligands. The activity and selectivity of the catalytic system could be improved by modifying the structure of salicylaldimine. In refluxing o-xylene, PdCl2(Ph3P)(2) with 2,5-ditrifluoromethyl N-phenylsalicylaldimine as a coligand shows high efficiency for the diarylation of various anilines. The catalytic system shows good toleration for the steric hindrance of the substrates. The facile catalytic system works as well on the multiple arylation of 1,1'-biphenyl-4,4'-diamine with aryl chlorides to afford N, N, N', N'-tetraaryl-1,1'-biphenyl-4,4'-diamines which are important intermediates of organic light emitting diode (OLED) hole transport materials.