Angew Chem Int Ed Engl
September 2012
Cutting loose: 1,1-Biarylmethanol substrates undergo reductive cleavage of the C-C bond in the presence of a cationic Rh(III) catalyst and H(2) (see scheme; DG=directing group). Various functional groups are tolerated in the reaction system. Preliminary studies indicate that a five-membered rhodacycle intermediate, which then converts into a Rh(III) hydride species for the reduction, is involved in the catalytic cycle.
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