A new precatalyst for the Suzuki reaction—a pyridyl-bridged dinuclear palladium complex as a source of mono-ligated palladium(0),10.1039/B401077A

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A new precatalyst for the Suzuki reaction—a pyridyl-bridged dinuclear palladium complex as a source of mono-ligated palladium(0)

Andrew Beeby,Sylvia Bettington,Ian J. S. Fairlamb,Andrés E. Goeta,Anant R. Kapdi,Elina H. Niemelä,Amber L. Thompson

New Journal of Chemistry Pub Date : 03/31/2004 00:00:00 , DOI:10.1039/B401077A

Abstract

A dinuclear pyridyl-bridged palladium complex, trans-(P,N)-[PdBr(μ-C₅H₄N-C²,N)(PPh₃)]₂1, was obtained from material isolated from the Suzuki cross-coupling reaction of 2-bromopyridine with 2,4-difluorophenylboronic acid in the presence of catalytic (PPh₃)₄Pd. Complex 1 is an effective precatalyst for the Suzuki cross-coupling reactions of a variety organoboronic acids and aryl bromides, and represents a useful source of mono-ligated palladium(0), “(Ph₃P)Pd(0)”.