Ni-catalyzed arylation of bromomagnesium diarylamides with aryl N,N-dimethylsulfamates
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- 作者：Hiroshi Tadaoka ; Tetsu Yamakawa
- 关键词：Unsymmetrical 1 ; 1&prime ; -biphenyl-4 ; 4&prime ; -diamine ; Ni catalyst ; Arylation ; Arylamine synthesis
- 刊名：Tetrahedron Letters
- 出版年：2012
- 出版时间：10 October, 2012
- 年：2012
- 卷：53
- 期：41
- 页码：5531-5534
- 全文大小：3901 K
文摘
The combination use of Ni(cod)2 and N,N-1,3-bis(2,6-diisopropylphenyl)-4-imidazoline-2-ylidene as a catalyst successfully gave unsymmetrical N,N-diaryl-N¡ä,N¡ä-diphenyl-1,1¡ä-biphenyl-4,4¡ä-diamines through the arylation of bromomagnesium diarylamide with 1-(4¡ä-diphenylamino-1,1¡ä-biphenylyl) N,N-dimethylsulfamate. This Ni catalyst and Grignard reagents of diaryl or monoarylamides were also useful in the syntheses of various triarylamines and diarylamines from corresponding aryl N,N-dimethylsulfamates.