Sequential Rh(l)/Pd-catalyzed 1,4-addition/Lntramolecular allylation: Stereocontrolled construction of γ-butyrolactones and cyclopropanes

Article abstract of DOI:10.1021/ol702613f

The rhodium-catalyzed conjugate addition of functionalized vinyltin reagents to alkylidene Meldrum's acids, followed by Pd-catalyzed intramolecular allylation, is a direct entry into vinyl-substituted y-lactones via Oalkylation and vinylcyclopropanes via