Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (2): 343.

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Synthesis of Cyclic Carbonates Catalyzed by Ionic Liquid Mediated ZnBr2 Catalytic System

LI Fu-Wei, XIAO Lin-Fei, XIA Chun-Gu   

  1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2004-04-09 Online:2005-02-10 Published:2005-02-10

Abstract: Ionic liquid mediated ZnBr2 system could catalyze the chemical fixation of CO2 with epoxides with a high selectivity(>98%) and TOF(5 580 h-1) under mild reaction conditions and the catalyst could be reused five times almost without losing its catalytic activity and selectivity. Besides, the pure cis-cyclic carbonate of cyclohexene oxide was obtained over this catalyst system.

Key words: Chemical fixation of CO2, cis-Cyclic carbonate, ZnBr2 ionic liquid, Composite catalyst system

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