Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (10): 20220274.doi: 10.7503/cjcu20220274

• Organic Chemistry • Previous Articles     Next Articles

Visible Light Induced Cyclization of O-Alkenylcarboxanilide to 2-Quinolinone

ZHANG Xiaofei(), LIU Jiaxin   

  1. Key Laboratory of Chemical Additives for China National Light Industry,College of Chemistry & Chemical Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China
  • Received:2022-04-24 Online:2022-10-10 Published:2022-06-17
  • Contact: ZHANG Xiaofei E-mail:zhangxiaofei@sust.edu.cn
  • Supported by:
    the Natural Science Foundation of Shaanxi Province, China(2021JQ-534)

Abstract:

A free radical cyclization reaction induced by visible light using cheap and readily available O-alkenylformanilide was developed. The strategy was used to synthesize fifteen 2-quinolinone derivatives in good to excellent yields. This method is simple and efficient, with mild conditions and excellent functional group compatibility. Meanwhile, a plausible mechanism is proposed on the basis of several mechanistic experiments and literature precedents. This method not only provides a new type of organic reaction involving O-alkenylformylanilide, but also provides a new pathway for the photocatalytic synthesis of quinolinones.

Key words: Free radical cyclization, Visible light induction, 2-Quinolinone

CLC Number: 

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