Tetrahedron

Cobalt-catalyzed benzylic C–H amination via dehydrogenative-coupling reaction

YH Ye, J Zhang, G Wang, SY Chen, XQ Yu

Index: Ye, Yang-Hong; Zhang, Ji; Wang, Gao; Chen, Shan-Yong; Yu, Xiao-Qi Tetrahedron, 2011 , vol. 67, # 25 p. 4649 - 4654

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Citation Number: 22

Abstract

Abstract An efficient direct benzylic C–H amination via dehydrogenative-coupling by using an inexpensive catalyst/oxidant (CoBr 2/t BuOO t Bu) system is described. Various unmodified amides including primary or secondary sulfonamides, carboxamides, and carbamates preformed well with benzylic hydrocarbons with moderate to good yields.