Homogenous Catalysis V. Hydrosilylation of Dienes with Octacarbonyldicobalt(0)

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Terence "Terry" Nile, Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: The room temperature hydrosilylation of linear 1,3-dienes and 1,3- or 1,4- cyclohexadienes using octacarbonyldicobalt(0) is described. Both cyclic dimers yield regiospecifically 2-cyclohexenylsilanes. The 2,3-dimethyl-1,3-butadiene (DMBD)/HSi(OSiMe3)2Me system has been investigated in particular detail, with variation of the concentrations of reactants or catalyst, temperature, solvent, or added ligands. The effect of these changes upon (a) total yield of silylated products and (b) relative proportions of the isomeric 1,2- or 1,4-adducts of silane to diene (diene/HSiX3) and of the bis-silylated adduct (diene/2 HSiX3), are assessed. p-Allylcobalt intermediates are suggested.

Additional Information

Journal of Organometallic Chemistry 136(1), 73.
Language: English
Date: 1977
hydrosilylation, reactants, catalysts

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