Enantioselective CO2 Fixation Catalyzed by Optically Active Cobalt Complexes

In the presence of a catalytic amount of optically active cobalt complexes and amine bases, a racemic epoxide, such as N,Ndiphenylaminomethyloxirane, reacted with gaseous carbon dioxide to afford the optically active cyclic carbonate along with the optically active starting epoxide.