Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses

被引：23

作者：

Murata, Kei ^{[1
,2
]}

Numasawa, Nobutsugu ^{[1
]}

Shimomaki, Katsuya ^{[1
]}

Takaya, Jun ^{[1
]}

Iwasawa, Nobuharu ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Chem, Tokyo, Japan

[2] Univ Tokyo, Inst Ind Sci, Tokyo, Japan

来源：

FRONTIERS IN CHEMISTRY | 2019年 / 7卷

关键词：

carboxylation; CO2; fixation; photoredox catalyst; rhodium catalyst; visible light; COORDINATION-COMPOUNDS; CARBON-DIOXIDE; C-H; REGIOSELECTIVE HYDROCARBOXYLATION; REDUCTIVE CARBOXYLATION; HYDROGEN-PRODUCTION; SINGLE-LAYER; CO2; COMPLEXES; PHOTOPHYSICS;

D O I：

10.3389/fchem.2019.00371

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The improved catalytic conditions and detailed reaction mechanism of the visible-light driven hydrocarboxylation of alkenes with CO2 by the Rh(I) and photoredox dual catalysts were investigated. The use of the benzimidazoline derivative, BI(OH)H, as a sacrificial electron donor was found to increase the yield of the hydrocarboxylated product by accelerating the reduction process. In addition, the incorporation of the cyclometalated Ir(III) complex as a second photosensitizer with [Ru(bpy)(3)](2+) photosensitizer also resulted in the promotion of the reduction process, supporting that the catalytic cycle includes two photochemical elementary processes: photoinduced electron and energy transfers.

引用

页数：15

共 75 条

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