Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (7): 1652-1656.DOI: 10.1016/S1872-2067(21)63956-6

• Special column on catalytic conversion of CO2 Previous Articles     Next Articles

Photo-catalyzed sequential dearomatization/carboxylation of benzyl o-halogenated aryl ether with CO2 leading to spirocyclic carboxylic acids

Yaping Yia, Chanjuan Xia,b,*()   

  1. aMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
    bState Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2021-08-05 Accepted:2021-10-08 Online:2022-07-18 Published:2022-05-20
  • Contact: Chanjuan Xi
  • Supported by:
    National Natural Science Foundation of China(21871163);National Natural Science Foundation of China(22071134)

Abstract:

Photo-catalyzed tandem dearomatization/carboxylation of benzyl o-halogenated aryl ether with CO2 was achieved, which affords spirocyclic carboxylic acids under mild conditions. The reaction has good functional group tolerance with high yields. Mechanism studies indicate that the transformation was realized via intramolecular radical addition and nucleophilic addition.

Key words: Photocatalysis, Carbon dioxide, Dearomatization, Carboxylation, Spiro compounds