Bipyridine??Modulated Palladium??Catalyzed Oxidative Heck??Type Reactions of Arylboronic Acids with Olefins

CM Hsu, CB Li, CH Sun

Index: Hsu, Chien-Ming; Li, Chih-Bin; Sun, Chia-Hsing Journal of the Chinese Chemical Society, 2009 , vol. 56, # 5 p. 873 - 880

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Citation Number: 5

Abstract

Abstract We have demonstrated that 4, 4′-dimethyl 2, 2′-bipyridine as ligand for Pd (II) catalysts was very efficient for oxidative Heck-type coupling reaction of arylboronic acids with olefins in DMA or CH 3 CN under atm air at 80 C. The presence of chelated bipyridine ligand isindispensable to achieve high reaction yields and to suppress the formation of biphenyl as homocoupled byproduct.

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