Tetrahedron letters

Heck reactions of 2-substituted enol ethers with aryl bromides catalysed by a tetraphosphine/palladium complex

A Battace, T Zair, H Doucet, M Santelli

Index: Battace, Ahmed; Zair, Touriya; Doucet, Henri; Santelli, Maurice Tetrahedron Letters, 2006 , vol. 47, # 4 p. 459 - 462

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Citation Number: 15

Abstract

cis, cis, cis-1, 2, 3, 4-Tetrakis (diphenylphosphinomethyl) cyclopentane/[PdCl (C3H5)] 2 efficiently catalyses the Heck reaction of β-substituted enol ethers with aryl bromides. Employing β-methoxystyrene, 3-ethoxyacrylonitrile or methyl 3-methoxyacrylate, the regioselective α-arylation of these enol ethers was observed in all cases, and mixtures of Z and E isomers were generally obtained, which in many cases yielded a single ketone ...