Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (11): 1246-1252.DOI: 10.11944/j.issn.1000-0518.2015.11.150108

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Metal-free Cyclization of Alkenes Toward Perfluorinated Oxindoles

TANG Shiab*(),LI Zhihaoa,DENG Youlina,GAN Yabinga,YUAN Shilianga,ZHOU Xiangqia   

  1. aCollege of Chemistry and Chemical Engineering,Jishou University,Jishou,Hu'nan 427000,China
    bCollege of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China
  • Received:2015-03-23 Accepted:2015-06-25 Published:2015-11-02 Online:2015-11-02
  • Contact: TANG Shi
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21462017), Opening Fund of Key Laboratory of Hu'nan Forest Product and Chemical Industry Engineering(No.JDZ201402)

Abstract:

A metal-free cyclization reaction of activated alkenes with nonafluorobutyl iodide toward perfluorinated oxindoles was developed. In the presence of azodiisobutyronitrile(AIBN), various N-arylacrylamide underwent radical cyclization smoothly to afford a series of synthetically important perfluorinated oxindoles in 53%~85% yields. This work provides a novel high efficient, cheap and green route for the synthesis of perfluorinated oxindoles having potential medicinal values.

Key words: metal-free, azodiisobutyronitrile, C—H cyclization, radical, perfluorinated oxindole