Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (10): 1494-1498.DOI: 10.1016/S1872-2067(19)63420-0

• Communication • Previous Articles     Next Articles

Visible-light-induced deoxygenative C2-sulfonylation of quinoline N-oxides with sulfinic acids for the synthesis of 2-sulfonylquinoline via radical reactions

Dao-Qing Donga, Li-Xia Lia, Guang-Hui Lia, Qi Dengb, Zu-Li Wanga, Shu Longc   

  1. a College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, Shandong, China;
    b School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China;
    c Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, Hunan, China
  • Received:2019-06-28 Revised:2019-07-25 Online:2019-10-18 Published:2019-08-26
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21402103, 21772107), the China Postdoctoral Science Foundation (150030), the Research Fund of Qingdao Agricultural University's Highlevel Person (631303), and Shandong province key research and development plan(GG201809130228).

Abstract: A simple and efficient method for the synthesis of 2-sulfonylquinoline from deoxygenative C2-sulfonylation of quinoline N-oxides with sulfinic acid induced by visible light is presented. This protocol shows a broad substrate scope, and desired products with various substituents can be formed in moderate to high yields at room temperature.

Key words: Quinoline N-oxides, Sulfinic acid, 2-Sulfonylquinoline, Visible light, Radical reaction