Michael Additions of Activated Methylene Compounds to α,β-Unsaturated Esters Promoted by Samarium (Ⅲ) Iodide

摘要

Promoted by SmI3 β-diketones, β-ketoesters and α–cyano esters were added to α,β–unsaturated esters to form δ–carbonyl esters in mild conditions in moderate to good yields.