Diastereo‐ and Enantioselective Inverse‐Electron‐Demand Diels–Alder Cycloaddition between 2‐Pyrones and Acyclic Enol Ethers
作者:Guanghao Huang、Régis Guillot、Cyrille Kouklovsky、Boris Maryasin、Aurélien de la Torre
DOI:10.1002/anie.202208185
日期:2022.10.17
The inverse-electron-demand Diels–Alder cycloaddition between 2-pyrones and acyclic enolethers was investigated. Bridged bicyclic lactones were obtained diastereo- and enantioselectively and converted into synthetically relevant polysubstituted enantioenriched cyclohexene and cyclohexadiene derivatives. Mechanistic evidence as well as DFT calculations point towards a stepwise mechanism.