Michael Addition of Active Methylene Compounds to alpha,beta-Unsaturated Carbonyl Compounds under the Influence of Molecular Sieves in Dimethyl Sulfoxide

摘要

The Michael addition of active methylene compounds to alpha,beta-unsaturated carbonyl compounds in the presence of MS 4A in dimethyl sulfoxide proceeds smoothly to afford the corresponding 1,4-addition products in good to high yields.