Tetrahedron letters

Diazabutadiene: a simple and efficient ligand for copper-catalyzed N-arylation of aromatic amines

YH Liu, C Chen, LM Yang

Index: Liu, Yu-Hua; Chen, Chen; Yang, Lian-Ming Tetrahedron Letters, 2006 , vol. 47, # 52 p. 9275 - 9278

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Citation Number: 57

Abstract

Diazabutadienes (DABs) were chosen as ancillary ligands in the Cu-catalyzed C–N coupling reaction for the synthesis of triarylamines. A combination of CuI/DAB (1)[1: N, N′- bis (2, 6-diisopropylphenyl)-1, 4-diaza-1, 3-butadiene] was found to be an efficient catalyst system for N-arylation of diarylamines and anilines with aryl iodides, affording the desired products in good to excellent yields.