Anionic chiral cobalt(III)complexes as catalysts of asymmetric synthesis of cyanohydrins

摘要

Chiral coordinatively saturated cobalt(III)complexes with Schiff bases of enantio-pure amino acids are formed as LAMBDA-and DELTA-isomers,which are not transformed into each other under normal conditions.These complexes catalyze the formation of enantiomerically enriched cyanohydrins from aldehydes and Me_3SiCN under homo-and heterogeneous catalysis.