Chinese Journal of Catalysis ›› 2008, Vol. 29 ›› Issue (2): 127-133.

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Epoxidation of Styrene and Its Derivatives Catalyzed by a Multi-component Ionic Liquid Functionalized with Manganese Porphyrin

ZHANG Hongjiao, LIU Ye*, CAI Yueqin, WU Haihong, LIU Xiuli   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2008-02-25 Online:2008-02-25 Published:2012-01-15

Abstract: The ionic manganese porphyrin bearing trimethylbenzylammonium cation and PF-6 anion ([MnTTMAPP][PF6]5) was mixed with the ionic liquids of [bzmim]BF4 and [bmim]BF4 to build up a manganese porphyrin-functionalized multi-component ionic liquid (MnPy-MIL), which was used as a catalytic system for expoxidation of styrene and its derivatives with oxidant PhIO. Compared with the traditional neutral manganese porphyrin, the MnPy-MIL system has advantages of suppression of oxidation degradation and self-aggregation, recyclability, and no requirements of additional axial ligands and organic solvents. The presence of a small amount of water could improve the catalytic performance of MnPy-MIL.

Key words: ionic liquid, manganese, porphyrin, styrene, epoxidation