Stereochemistry in the Hydrosilylation of Substituted Cyclohexanones Catalyzed by Chlorotris(triphenylphosphine)rhodium and the Silica-linked Rhodium(I) Complex

Abstract

Abstract The homogeneous and heterogeneous hydrosilylation of simple substituted cyclohexanones catalyzed by chlorotris(triphenylphosphine) rhodium, RhCl(PPh3)3, and the silica-linked rhodium (I) complex, (Remark: Graphics omitted.), was examined. The stereoselectivity exhibited by the homogeneous catalyst was found to be nearly the same as that exhibited by the heterogeneous catalyst. The silica-linked rhodium catalyst could be re-used several times without any significant loss of the catalytic activity.