Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (9): 2798.doi: 10.7503/cjcu20210260

• Organic Chemistry • Previous Articles     Next Articles

Novel Approach to Isatins via Pd-Cu Catalyzed Oxidative Transformation

GUO Yang1,2, LIN Kai2, XIE Kaiqiang2, LIU Sheng1,2()   

  1. 1.State Key Laboratory of Functions and Applications of Medicinal Plants,Guizhou Medical University
    2.Key Laboratory of Chemistry for Natural Products of Guizhou Province,Chinese Academy of Sciences,Guiyang 550014,China
  • Received:2021-04-19 Online:2021-09-10 Published:2021-09-08
  • Contact: LIU Sheng E-mail:lsheng@126.com
  • Supported by:
    the National Natural Science Foundation of China(21762014)

Abstract:

A new method of synthesizing isatin was developed and applied to the substrate extension to get a series of isatin compounds. Using N-alkyl substituted acrylanilide compounds as raw materials, in palladium acetate, cuprous iodide and under the catalysis and participation of oxygen, N-alkylated isatin derivatives could be synthesized with the yields of 42%—87%. Using this method, 23 isatin compounds were prepared and the possible reaction mechanism was proposed. This synthetic route reduces the use of protecting groups and is simple and efficient.

Key words: Isatin, Pd-catalyzed, Oxidation, Intramolecular cyclization

CLC Number: 

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