Herein, a photocatalyzed, intramolecular C(sp²)−H amidation of N-benzoyloxyamides has been developed to afford δ-benzolactams with an aryl-alkyl σ-bond relocation. Upon the formation of amidyl radical via reductive N−O bond cleavage, selective radical ipso-addition followed by a redox-neutral radical–polar crossover was suggested to be responsible for the preferential C−C bond migration.

中文翻译：

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可见光诱导的 C(sp2)-H 酰胺化与芳基-烷基 σ-键重定位通过氧化还原-中性自由基-极性交叉

在此，已开发出N-苯甲酰氧基酰胺的光催化分子内 C(sp ² )-H 酰胺化，以提供具有芳基-烷基σ -键重定位的δ -苯内酰胺。一旦经由还原N-O键断裂形成酰胺基的基团，选择性自由基本位-addition接着是氧化还原中性基极交叉建议负责优先C-C键的迁移。