Green Synthesis and Catalysis (Aug 2023)

Visible-light-induced C–H sulfenylation of quinoxalin-2(1H)-ones with disulfides by sustainable cerium catalysis

  • Lixi Zhang,
  • Jingwen He,
  • Pengfei Zhang,
  • Dancheng Zhu,
  • Kai Zheng,
  • Chao Shen

Journal volume & issue
Vol. 4, no. 3
pp. 226 – 230

Abstract

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Using visible light as energy to form free radicals has important synthetic value. A novel and efficient visible-light-mediated strategy has been developed for the generation of thiobenzene radicals through cerium-catalyzed activation of the disulfides. Through this photochemical reaction, various 3-sulfenylated quinoxalin-2(1H)-ones can be conveniently obtained in good yields with good functional group tolerance. Our transformation provides an alternative that allows rapid access to various C3 sulfenylated quinoxalin-2(1H)-ones in a sustainable and practical manner.

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