Bidentate Ruthenium Vinylcarbene Catalysts Derived from Enyne Metathesis
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- 作者：Alois Fü ; rstner ; Paul W. Davies ; and Christian W. Lehmann
- 刊名：Organometallics
- 出版年：2005
- 出版时间：August 1, 2005
- 年：2005
- 卷：24
- 期：16
- 页码：4065 - 4071
- 全文大小：168K
- 年卷期：v.24,no.16(August 1, 2005)
- ISSN：1520-6041
文摘
The preparation, structure, and catalytic activity of a series of bidentate 
1-vinylcarbeneruthenium complexes derived from the standard metathesis catalysts 1, 2, or 4 by enynemetathesis with phenylacetylene derivatives bearing an isopropoxy substituent at their orthoposition are described. Terminal as well as non-terminal phenylacetylene derivatives reactwith similar ease, thus providing ample opportunity for the preparation of catalysts withtailor-made properties. Use of the silyl propargyl ether derivative 13b as the substrate resultsin the formation of complex 15, in which the silyl ether moiety rather than the isopropoxysubstituent ligates the metal center. The structures of the new chelate complexes 6, 7, 9,14, and 15 in the solid state were determined by X-ray crystallography.
1-vinylcarbeneruthenium complexes derived from the standard metathesis catalysts 1, 2, or 4 by enynemetathesis with phenylacetylene derivatives bearing an isopropoxy substituent at their orthoposition are described. Terminal as well as non-terminal phenylacetylene derivatives reactwith similar ease, thus providing ample opportunity for the preparation of catalysts withtailor-made properties. Use of the silyl propargyl ether derivative 13b as the substrate resultsin the formation of complex 15, in which the silyl ether moiety rather than the isopropoxysubstituent ligates the metal center. The structures of the new chelate complexes 6, 7, 9,14, and 15 in the solid state were determined by X-ray crystallography.