Tetrahedron letters

Hydrosilylation of alkynes catalyzed by ruthenium carbene complexes

SV Maifeld, MN Tran, D Lee

Index: Maifeld, Sarah V.; Tran, Michael N.; Lee, Daesung Tetrahedron Letters, 2005 , vol. 46, # 1 p. 105 - 108

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Citation Number: 76

Abstract

Hydrosilylation of terminal alkynes with a variety of silanes catalyzed by Cl2 (PCy3) 2RuCHPh () affords mainly the Z-isomer via trans addition in excellent yields. The presence of a hydroxyl group in close proximity to the triple bond was observed to exert a strong directing effect, resulting in the highly selective formation of the α-isomer. Intramolecular hydrosilylation of a homopropargylic silyl ether was demonstrated to give the cis addition ...

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