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Exo-Selective and Enantioselective Photoenolization/Diels–Alder Reaction

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journal contribution
posted on 2021-09-22, 16:34 authored by Min Hou, Mengmeng Xu, Baochao Yang, Haibing He, Shuanhu Gao
An unusual exo-selective photoenolization/Diels–Alder reaction of electron-rich 2-methylbenzaldehydes and dienophiles containing a benzoyl group at its α position was reported herein. The chiral TADDOL-type ligand plays a key role in this process: (1) accelerating the reaction; (2) controlling the enantioselectivity; and (3) improving and tuning the diastereoselectivity of the reaction.