首页|Photocatalytic dicarboxylation of strained C-C bonds with CO2 via consecutive visible-light-induced electron transfer
Photocatalytic dicarboxylation of strained C-C bonds with CO2 via consecutive visible-light-induced electron transfer
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Dicarboxylic acids have a wide range of applications in the polymer industry to construct valuable mate-rials.Photocatalysis has recently emerged as an efficient and sustainable strategy to generate dicarboxylic acids.However,photocatalytic dicarboxylation with CO2 is mainly limited to unsaturated bonds,and the dicarboxylation of C-C single bonds still remains a challenge.Herein,we report a photocatalytic dicar-boxylation of C-C single bonds in strained rings with CO2 units via consecutive photo-induced electron transfer(ConPET).It is also the first photocatalytic reductive ring-opening reaction of cyclobutanes.No-tably,this transition-metal-free protocol exhibits good functional group tolerance,broad substrate scope,facile scalability,and easy product derivatizations.Moreover,diacids can easily be derivatized to main-chain liquid crystalline polyesters.
Consecutive photo-induced electron transferVisible-light catalysisDicarboxylationCarbon dioxideCyclopropanes
Yi Liu、Zhe-Hao Wang、Guan-Hua Xue、Lin Chen、Li-Hua Yuan、Yi-Wen Li、Da-Gang Yu、Jian-Heng Ye
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Key Laboratory of Green Chemistry & Technology of Ministry of Education,College of Chemistry,Sichuan University,Chengdu 610064,China
College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China
State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China
Financial support is provided by the National Natural science Foundation of ChinaFundamental Research Funds from Sichuan UniversityFundamental Research Funds for the Central Universities
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