Copper-Catalyzed Oxalamide-Directed ortho-C-H Amination of Anilines with Alkylamines. 2020

Peng Wu, and Wei Huang, and Tai-Jin Cheng, and Hai-Xia Lin, and Hui Xu, and Hui-Xiong Dai
Department of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China.

A copper-catalyzed oxalamide-directed ortho-C-H amination of anilines has been developed by using 1 atm of air as the sole oxidant. The protocol shows excellent functional group tolerance, and some heterocyclic amines including indole, benzothiophene, benzothiazole, quinoline, isoquinoline, and quinoxaline could be compatible in the reaction. The late-stage diversification of medicinal drugs demonstrates the synthetic utility of this protocol.

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