Mechanism of a Luminescent Dicopper System That Facilitates Electrophotochemical Coupling of Benzyl Chlorides via a Strongly Reducing Excited State

被引：18

作者：

Zott, Michael D. ^{[1
]}

Canestraight, Virginia M. ^{[1
]}

Peters, Jonas C. ^{[1
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

ACS CATALYSIS | 2022年 / 12卷 / 17期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

electrophotochemistry; photoredox catalysis; copper catalysis; photoinduced homocoupling; luminescent copper; COMPLEXES; CATALYSIS; PHOTOREDOX; CHEMISTRY; HALIDES; LIGHT;

D O I：

10.1021/acscatal.2c03215

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photochemical radical generation has become a modern staple in chemical synthesis and methodology. Herein, we detail the photochemistry of a highly reducing, highly luminescent dicopper system [Cu-2] (Eox* approximate to -2.7 V vs SCE; tau(0) approximate to 10 mu s) within the context of a model reaction: single-electron reduction of benzyl chlorides. The dicopper system is mechanistically well defined. As we show, it is the [Cu-2]* excited state that serves as the outer-sphere photoreductant of benzyl chloride substrates; the ground-state oxidized byproduct, [Cu-2](+), is electrochemically recycled, demonstrating a catalytic electrophotochemical C-C coupling process.

引用

页码：10781 / 10786

页数：6

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