Synthesis 2019; 51(11): 2331-2338
DOI: 10.1055/s-0037-1610868
paper
© Georg Thieme Verlag Stuttgart · New York

Trichloroisocyanuric Acid Induced Chlorine Radical Cascade Chlorination­/Carbocyclization of Acrylamides: Constructing Chlorinated Oxindoles by C–Cl and C–C Bond-Forming Reactions

Authors

  • Yingpeng Su  *

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Lindan Cao

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Ya Shi

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Yawei Feng

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Wenxuan Xue

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Guiyan Cao

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Ke-Hu Wang

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Danfeng Huang

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Congde Huo

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
  • Yulai Hu

    a   College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. of China   eMail: Suyp51@nwnu.edu.cn
    b   State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. of China

We are thankful for financial support from the National Natural Science Foundation of China (Grant No. 21502154, 21362033); and the Gansu Provincial Science and Technology Program (No. 17JR5RA073).
Weitere Informationen

Publikationsverlauf

Received: 17. Januar 2019

Accepted after revision: 12. Februar 2019

Publikationsdatum:
14. März 2019 (online)


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Abstract

A metal- and additive-free strategy for the synthesis of oxindoles has been achieved through a chlorine radical-induced cascade chlorination/carbocyclization of N-aryl acrylamides. Trichloroiso­cyanuric acid (TCCA) is used as both radical initiator and chlorine source. A wide range of substrates can be applied in this process to directly afford chlorinated oxindoles via C–Cl and C–C bond formation.

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