Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (2): 177-183.DOI: 10.1016/S1872-2067(18)63200-0

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Synthesis of spiropyrrolidine oxindoles through Rh(II)-catalyzed olefination/cyclization of diazooxindoles and vinyl azides

Ruxia Yia,b, Leilei Qiana,b, Boshun Wana   

  1. a Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-11-02 Revised:2018-11-14 Online:2019-02-28 Published:2019-01-11
  • Contact: 10.1016/S1872-2067(18)63200-0
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21572225).

Abstract:

A simple and efficient process involving the Rh(Ⅱ)-catalyzed[1+1+3] annulation of diazooxindoles and vinyl azides has been developed for the synthesis of spiropyrrolidine oxindoles with potential biological activity and significant synthetic applications. This process involves a novel rhodium-catalyzed olefination of diazo compounds, followed by annulation with vinyl azides. This method is compatible with a broad range of substrates and affords moderate to good yields under mild reaction conditions.

Key words: Rhodium catalyst, Vinyl azides, Diazo compounds, Spiropyrrolidine oxindoles, Olefination, [1+1+3] annulation