Zn-ProPhenol catalyzed asymmetric inverse-electron-demand Diels–Alder reaction†
Abstract
The first Zn-ProPhenol catalyzed asymmetric inverse-electron-demand Diels–Alder reaction has been accomplished. This protocol was carried out by a dual-activation mode under mild conditions, allowing the preparation of various biologically important dihydropyrans in good yields with excellent stereoselectivities.