Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (10): 1566-1575.DOI: 10.1016/S1872-2067(19)63396-6

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Chiral Brønsted acid-catalyzed conjugate addition of indoles to azadienes: Enantioselective synthesis of hetero-triarylmethanes

Huan-Ping Xiea,b, Bo Wua, Xin-Wei Wanga, Yong-Gui Zhoua   

  1. a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-06-27 Revised:2019-07-20 Online:2019-10-18 Published:2019-08-26
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21532006), Dalian Bureau of Science and Technology (2016RD07), and the Strategic Priority Program of the Chinese Academy of Sciences (XDB17020300).

Abstract: An efficient chiral Brønsted acid-catalyzed conjugate addition of indoles to azadienes has been successfully developed, which enables a facile approach to optically active hetero-triarylmethanes with excellent enantioselectivities and broad substrate scope. This chiral Brønsted acid catalytic system provides a new opportunity for the development of asymmetric reactions of azadienes.

Key words: Conjugate addition, Hetero-triarylmethane, Azadiene, Indole, Chiral Brønsted acid