Enantioselective Synthesis of Bicyclic δ-Lactones via N-Heterocyclic Carbene-Catalyzed Cascade Reaction
作者:Zhi-Qin Liang、Dong-Ling Wang、Han-Ming Zhang、Song Ye
DOI:10.1021/acs.orglett.5b02695
日期:2015.10.16
The N-heterocyclic carbene-catalyzed cascade reaction of enals with malonates to give bicyclic delta-lactones was developed. The cyclopentane- and cyclohexane-fused delta-lactones with three continued stereocenters were obtained in high yields with excellent diastereo- and high enantioselectivities.