转鼓
乙烯基
化学
分子内力
内酯
分子间力
酯交换
有机化学
激进的
分子
催化作用
亲核细胞
作者
Jiayi Gu,Wei Zhang,Seth R. Jackson,Yan‐Hong He,Zhi Guan
摘要
We herein report the photoinduced intermolecular umpolung addition of aromatic ketones/aldehydes with α,β-unsaturated esters via ketyl radical intermediates. Following an intramolecular transesterification, a variety of γ-lactone derivatives are readily accessed. Mechanistic investigations demonstrate the significant role of Hantzsch ester, which serves both as the electron and proton donor.
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