Formation of a Ruthenium(II) Dicyclohexyl(η2-cyclohex-3-enyl)phosphine Hydride Complex from an Alkylidene Precursor

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• 作者：Wai-Man Cheung ; Wai-Hang Chiu ; Xiao-Yi Yi ; Qian-Feng Zhang ; Ian D. Williams ; Wa-Hung Leung
• 刊名：Organometallics
• 出版年：2010
• 出版时间：April 26, 2010
• 年：2010
• 卷：29
• 期：8
• 页码：1981-1984
• 全文大小：726K
• 年卷期：v.29,no.8(April 26, 2010)
• ISSN：1520-6041

文摘

Treatment of Ru(═CHPh)Cl₂(PCy₃)₂ (Cy = cyclohexyl) with K[N(i-Pr₂PS)₂] afforded a mixture of Ru(═CHPh)[N(i-Pr₂PS)₂](PCy₃)Cl (1) and Ru(═CHPh)[N(i-Pr₂PS)₂]₂ (2). Reaction of 1 with TlOPh gave Ru(═CHPh)[N(i-Pr₂PS)₂](PCy₃)(OPh) (3), whereas that with NaOMe yielded the Ru(II) hydride compound Ru(H)[N(i-Pr₂PS)₂][PCy₂(η²-C₆H₉)] (4), in which the dicyclohexyl(cyclohex-3-enyl)phosphine ligand binds to Ru via the phosphorus atom and the C═C bond of the cyclohex-3-enyl ring. The structures of complexes 3 and 4 have been established by X-ray crystallography.