Selective 1,2-addition of organocerium(III) reagents to α,β-unsaturated carbonyl compounds

Abstract

Organocerium(III) reagents react with α,β-unsaturated carbonyl compounds to afford 1,2-addition products in higher regioselectivity in comparison with organolithiums and the Grignard reagents. This selective 1,2-addition of organocerium reagents is considered to proceed through a polar pathway.