A Direct Method for Cobalt-Carbon Bond Formation in Cobalt(III)-Containing Cobalamins and Cobaloximes. Further Support for Cobalt(III) Complexes in Coenzyme B12 Dependent Rearrangements
Silverman, R.B. and David Dolphin
J. Am. Chem. Soc.
The reactions of electron-rich olefins with cobaloximes and cobalamins to give the corresponding Co(III)-alkylated products are presented as further evidence for the existence of Co(III)-π-complexes. The intermediacy of π-complexes in the rearrangements controlled by coenzyme B12-dependent enzymes is supported.