Activation and C-C Coupling of Aryl Iodides via Bismuth Photocatalysis

被引：1

作者：

Mato, Mauro ^{[1
]}

Stamoulis, Alexios ^{[1
]}

Bruzzese, Paolo Cleto ^{[2
]}

Cornella, Josep ^{[1
]}

机构：

[1] Max Planck Inst Kohlenforsch, Kaiser Wilhelm Pl 1, D-45470 Mulheim, Germany

[2] Max Planck Inst Chem Energiekonvers, Stiftstr 34?36, D-45470 Mulheim, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2024年

基金：

欧洲研究理事会;

关键词：

bismuth catalysis; radical catalysis; photocatalysis; cross-coupling reactions; aryl halide activation; LIGAND-TO-LIGAND; PHOTOREDOX CATALYSIS; ELECTRON-TRANSFER; AMINOALKYL RADICALS; CHARGE-TRANSFER; LIGHT;

D O I：

10.1002/anie.202418367

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Within the emerging field of bismuth redox catalysis, the catalytic formation of C-C bonds using aryl halides would be highly desirable; yet such a process remains a synthetic challenge. Herein, we present a chemoselective bismuth-photocatalyzed activation and subsequent coupling of (hetero)aryl iodides with pyrrole derivatives to access C(sp2)-C(sp2) linkages through C-H functionalization. This unique reactivity is the result of the bismuth complex featuring two redox state-dependent interactions with light, which 1) activates the Bi(I) complex for oxidative addition via MLCT, and 2) promotes the homolytic cleavage of aryl Bi(III) intermediates through a LLCT process.

引用

页数：7

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