Redox Behavior of Simple Vitamin B12 Model Complexes with Cobalt–Carbon Bonds and Catalytic Carbon-Skeleton Rearrangements

The cobalt complex of 2,10-diethyl-3,9-dipropyl-1,4,8,11-tetraazaundeca-1,3,8,10-tetraene-1,11-diol catalyzed electrolyses of alkyl halides with electron-withdrawing groups at the β-position to afford rearrangement products via oxidation of the corresponding dialkylated complexes as intermediates.