Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-07-01

Journal: APPLIED ORGANOMETALLIC CHEMISTRY

Included Journals: EI、SCIE

Volume: 25

Issue: 7

Page Number: 514-520

ISSN: 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.