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Indexed by:期刊论文

Date of Publication:2011-07-01

Journal:APPLIED ORGANOMETALLIC CHEMISTRY

Included Journals:SCIE、EI

Volume:25

Issue:7

Page Number:514-520

ISSN No.:0268-2605

Key Words:Suzuki cross-coupling; diarylacetylene; palladium chloride; alkynylation

Abstract:A PdCl2-catalyzed direct alkynylation of arylboronic acids to give diarylacetylenes is described. The optimal conditions using PdCl2 as catalyst, MeOH-PhMe-H2O as solvent and K2CO3 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-B)-sp(C-X) cross-coupling. Copyright (C) 2011 John Wiley & Sons, Ltd.