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Letter

C−C Coupling Reactions of Aryl Bromides and Arylsiloxanes in Water Catalyzed by Palladium Complexes of Phosphanes Modified with Crown Ethers

Supporting Info

Álvaro Gordillo, Ernesto de Jesús,* and Carmen López-Mardomingo

Departamento de Qumica Orgnica and Departamento de Qumica Inorgnica, Universidad de Alcal, 28871 Alcal de Henares (Madrid), Spain

Org. Lett., 2006, 8 (16), pp 3517–3520

DOI: 10.1021/ol061221y

Publication Date (Web): July 1, 2006

In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.

, ernesto.dejesus@uah.es

Abstract

The complexes [PdCl₂L₂], where L is a crown-ether-containing triarylphosphane, catalyze the formation of biaryls from arylsiloxanes and aryl bromides with high yields in water as solvent and under air. The water-insoluble catalysts [PdCl₂(PhCN)₂] and [PdCl₂(PPh₃)₂] are also efficient, although they decompose more quickly to form black Pd⁰.

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