Homogeneous catalysis: VI. Hydrosilylation using tris(pentanedionato)rhodium(III) or tetrakis(μ-acetato)dirhodium(II) as catalyst |
| |
| Authors: | Andrew J Cornish Michael F Lappert Grace L Filatovs Terence A Nile |
| |
| Institution: | School of Molecular Sciences, University of Sussex, Brighton BN1 9QJ Great Britain;Department of Chemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27412 U.S.A. |
| |
| Abstract: | The catalytic activity of tris(pentanedionato)rhodium(III), (or rhodium(III) acetylacetonate) (I) has been investigated for the hydrosilylation of a variety of organic substrates: alkenes, terminal or internal acetylenes, conjugated dienes, or α,β-unsaturated carbonyls or nitriles. With PhCHCH2 or PhCH2CHCH2, ω-substitution was unexpectedly observed, as well as addition. Compound I is an active hydrosilylation catalyst in the absence of any added reducing agent, as is tetrakis(μ-acetato)dirhodium(II) (II) which does not, however, show any unusual catalytic activity due to the two metal atom cluster. Possible mechanisms are suggested. |
| |
| Keywords: | Authors to whom correspondence should be addressed |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
