Tetrahedron

A simple and efficient reusable polystyrene-supported palladium catalyst for Hiyama cross-coupling

C Diebold, A Derible, JM Becht, C Le Drian

Index: Diebold, Carine; Derible, Antoine; Becht, Jean-Michel; Le Drian, Claude Tetrahedron, 2013 , vol. 69, # 1 p. 264 - 267

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Citation Number: 14

Abstract

An efficient synthesis of biaryls using a Hiyama reaction between aryl iodides and aryltrialkoxysilanes in the presence of a diphenylphosphinomethylpolystyrene-supported palladium catalyst is described. The cross-coupling proceeds in the presence of only 0.1 mol% of supported palladium. The catalyst can be used at least four times and the palladium leaching is extremely low (ca. 1% of the initial amount).

~80%

~10%

~99%

~66%

~62%

~88%

~72%

~99%

~60%

~62%

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