Synthesis of C2-Carbonyl Indoles via Visible Light-Induced Oxidative Cleavage of an Aminomethylene Group
作者:Yuzhen Ding、Lei Shen、Kangjiang Liang、Chengfeng Xia
DOI:10.1021/acs.joc.2c02292
日期:2022.12.16
A strategy for photochemical oxidative cleavage of the aminomethylene group at the C2 position of indole was developed to synthesize C2-carbonyl indoles. The reaction was initiated by the photochemical oxidation of N1, followed by a water-assisted concerted H-shift by abstracting hydrogen from aminomethylene. Bromopyridine was discovered to play dual roles as an oxidant for the regeneration of photocatalysts
开发了吲哚 C2 位氨基亚甲基的光化学氧化裂解策略以合成 C2-羰基吲哚。该反应由 N1 的光化学氧化引发,随后通过从氨基亚甲基中提取氢来进行水辅助的协同 H 转移。发现溴吡啶作为光催化剂再生的氧化剂和单电子转移过程的促进剂发挥双重作用。