Chinese Journal of Catalysis ›› 2023, Vol. 50: 222-228.DOI: 10.1016/S1872-2067(23)64468-7

• Communications • Previous Articles     Next Articles

Photocatalytic 1,3-dicarboxylation of unactivated alkenes with CO2

Han-Zhi Xiaoa,1, Bo Yua,b,1, Si-Shun Yana, Wei Zhanga, Xi-Xi Lia, Ying Baoa, Shu-Ping Luoc, Jian-Heng Yea,*(), Da-Gang Yua,*()   

  1. aKey Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China
    bShandong Energy Institute, CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China
    cState Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
  • Received:2023-04-18 Accepted:2023-05-22 Online:2023-07-18 Published:2023-07-25
  • Contact: *E-mail: jhye@scu.edu.cn (J.-H. Ye), dgyu@scu.edu.cn (D.-G. Yu).
  • About author:

    1 Contributed equally to this work.

  • Supported by:
    National Natural Science Foundation of China(22225106);National Natural Science Foundation of China(22101191);China Postdoctoral Science Foundation(2020M683301);China Postdoctoral Science Foundation(2021M692261);Fundamental Research Funds from Sichuan University(2020SCUNL102);Sichuan Science and Technology Program(2021YJ0405);Fundamental Research Funds for the Central Universities

Abstract:

Photocatalytic carboxylation with CO2 is a powerful strategy for the synthesis of functionalized carboxylic acids and their derivatives under mild conditions. However, the dicarboxylation of alkenes with CO2 is still underdeveloped and confined to the formation of only two C-C bonds. Herein, we report the 1,3-dicarboxylation of unactivated alkenes with CO2 via 1,2-aryl migration, which involves the cleavage of one C-C bond and the formation of three C-C bonds. This visible-light photocatalytic protocol is also distinguished by good functional group tolerance, broad substrate scope, and facile derivations of products to heterocyclic scaffolds. Mechanistic studies indicate that the in situ generated formate could act as the radical precursor of CO2˙ˉ, and the following radical addition, 1,2-aryl migration, single electron reduction, and nucleophilic attack at the second CO2 would afford the dicarboxylic acids.

Key words: Carbon dioxide, Visible-light photocatalysis, 1,3-Dicarboxylation, Unactivated alkene, 1,2-Aryl migration