Efficient synthesis of ruthenium vinyl carbene complexes

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• 作者：Beata Powa艂a ; Maciej Kubicki ; Grzegorz Sp贸lnik ; Witold Danikiewicz ; Cezary Pietraszuk
• 关键词：Ruthenium ; Benzylidene complexes ; Vinyl carbene complexes
• 刊名：Journal of Organometallic Chemistry
• 出版年：15 February, 2014
• 年：2014
• 卷：752
• 期：Complete
• 页码：109-114
• 全文大小：527 K

文摘

First generation Grubbs catalyst [RuCl₂(PCy₃)₂(CHPh)] and related complexes of a general formula [RuCl₂(PCy₃)₂(CHR)], where R is an aromatic or methyl group, undergo efficient reaction with trimethylsilylacetylene and related silylacetylenes to form vinyl carbene complexes [RuCl₂(PCy₃)₂(CHCHCHR)] and disiloxane. The reaction requires the presence of water in the reaction medium. It is a convenient method for the high-yield synthesis of ruthenium vinyl carbene complexes. For benzylidene complexes, the reaction gives exclusively E-geometry of vinyl carbene ligand.