Catalytic Enantioselective Inverse-Electron-Demand Diels–Alder Reaction of 2-Pyrones and Vinyl Selenides
作者:Quan Cai、Xin-Yu You
DOI:10.1055/a-1990-5276
日期:——
We report an asymmetric inverse-electron-demand Diels–Alder reaction of electron-deficient 2-pyrones with various phenyl vinyl selenides catalyzed by a chiralbis(oxazoline)/Cu(OTf)2 complex. By using a side-arm-modified chiralbis(oxazoline)ligand, a variety of [2,2,2]-bicyclic lactones with phenyl selenide substituents were obtained in good to excellent yields (up to 99%) and enantioselectivities