Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (12): 2766.doi: 10.7503/cjcu20200420

• Organic Chemistry • Previous Articles     Next Articles

Synthesis of Aminophosphine Ruthenium Carbene Complex and Its Application in Olefins Metathesis Reaction

WANG Jinyu, LIU Chunli, CHEN Yanhui()   

  1. Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco?utilization,College of Chemical Engineering and Materials Science,Tianjin University of Science & Technology,Tianjin 300457,China
  • Received:2020-07-02 Online:2020-12-10 Published:2020-12-09
  • Contact: CHEN Yanhui E-mail:cyh@tust.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21371131)

Abstract:

A series of Grubbs ruthenium carbene catalysts featuring an aminophosphine ligand [RuCl2·(H2IMes)(R1HNPR22)(=CHPh)] was synthesized and characterized by means of nuclear magnetic resonance spectrometry and single crystal X-ray diffraction. Under the ambient conditions, these ruthenium complexes were tested as catalyst for the ring-closing metathesis(RCM) reaction of N,N-diallyl-p-toluenesulfonamide, and complex G2?1 was found to have the best catalytic activity. With the catalyst loading in the range of 0.1%—2.0%(molar fraction), G2?1 was compatible with the RCM reaction of various diene and polyene, and had high catalytic activity(>95% yield of product). G2?1 could also be used as catalyst for cross metathesis(CM) reaction of different terminal olefin substrates, up to 92% yield was achieved in the CM reaction of styrene and 3-phenoxypropene.

Key words: Aminophosphine, Ruthenium carbene complex, Ring-closing metathesis, Cross metathesis

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