Preparation of New Nitrogen-Bridged Heterocycles. 5. Smooth Michael Additions of 2(3H)-Indolizinone Derivatives

Article abstract of DOI:10.1246/bcsj.55.3590

Michael additions of some 2(3H)-indolizinone derivatives to α,β-unsaturated nitriles, esters, and an amide gave the corresponding double Michael adducts, 3,3-disubstituted 2(3H)-indolizinones, in moderate to high yields, and those to methyl vinyl ketone a