Chinese Journal of Catalysis ›› 2020, Vol. 41 ›› Issue (8): 1168-1173.DOI: 10.1016/S1872-2067(19)63526-6

• Communications • Previous Articles     Next Articles

C(sp2)-H/O-H cross-dehydrogenative coupling of quinoxalin-2(1H)-ones with alcohols under visible-light photoredox catalysis

Long-Yong Xiea, Yi-Shu Liua, Hong-Ru Dinga, Shao-Feng Gonga, Jia-Xi Tanc, Jun-Yi Heb, Zhong Caob, Wei-Min Hea   

  1. a Department of Chemistry, Hunan University of Science and Engineering, Yongzhou 425100, Hunan, China;
    b Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, Hunan, China;
    c School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
  • Received:2019-11-30 Revised:2019-12-28 Online:2020-08-18 Published:2020-08-08
  • Supported by:
    This work was supported by the Hunan Provincial Natural Science Foundation of China (2019JJ20008).

Abstract: An efficient and practical route to various 3-alkoxylquinoxalin-2(1H)-ones through visible-light photocatalytic C(sp2)-H/O-H cross-dehydrogenation coupling of quinoxalin-2(1H)-ones and alcohols, employing ambient air as an oxidant at room temperature under metal-free conditions, was developed.

Key words: Quinoxalin-2(1H)-ones, Alcohols, Visible-light photoredox catalysis, Cross-dehydrogenative coupling, Metal free reaction