Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses.
作者信息
Murata Kei, Numasawa Nobutsugu, Shimomaki Katsuya, Takaya Jun, Iwasawa Nobuharu
机构信息
Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan.
出版信息
Front Chem. 2019 May 22;7:371. doi: 10.3389/fchem.2019.00371. eCollection 2019.
Abstract
The improved catalytic conditions and detailed reaction mechanism of the visible-light driven hydrocarboxylation of alkenes with CO 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)] 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.
摘要
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