A Suzuki??type cross??coupling reaction of arylacetylene halides with arylboronic acids

Y Shi, X Li, J Liu, W Jiang, L Sun

Index: Shi, Yu; Li, Xiaoyu; Liu, Jianhui; Jiang, Wenfeng; Sun, Licheng Applied Organometallic Chemistry, 2011 , vol. 25, # 7 p. 514 - 520

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Citation Number: 6

Abstract

Abstract A PdCl 2-catalyzed direct alkynylation of arylboronic acids to give diarylacetylenes is described. The optimal conditions using PdCl 2 as catalyst, MeOH [BOND] PhMe [BOND] H 2 O as solvent and K 2 CO 3 as base effectively suppressed the formation of homo- coupling product and afforded moderate to good yield of the desired unsymmetrical coupling product. This reaction represents a Suzuki-type sp 2 (C [BOND] B)–sp (C [BOND] X) cross- ...