Heck Arylation of Conjugated Alkenes Catalysed by a Silica-Supported Poly-γ-Methylselenopropylsiloxane Palladium(0) Complex,the First Polymeric Organoselenium Palladium Complex †

Abstract

A silica-supported poly-γ-methylselenopropylsiloxane palladium(0) complex was prepared from poly-γ-chloro-propylsiloxane by treatment with sodium methyl-selenolate, followed by reaction with palladium chloride and then reduction with hydrazine hydrate. The first polymeric organoselenium palladium complex is a highly active and stereoselective catalyst for the arylation of conjugated alkenes.