Efficient synthesis of styrene carbonate from CO2 and styrene oxide using zinc catalysts immobilized on soluble imidazolium-styrene copolymers

Kun Kyo, Fumitaka Ono, Quanxi Bao, Daisuke Tomida, Chiaki Yokoyama

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Preparation of zinc catalysts (Zn/PS-IL[X], X=Br-, Cl -, BF4 -, and PF6 -) supported on imidazolium-styrene copolymers, as well as their catalytic use for the solvent-free synthesis of styrene carbonate from CO2 and styrene oxide, are described. Among the catalysts examined, Zn/PS-IL[Br] was proved to be the most efficient. When used in a homogeneous system during the reaction process, Zn/PS-IL[Br] gave a 97.5% yield of product with a TOF value that can be up to about 3800 h-1. Due to its immiscibility with ethanol, Zn/PS-IL[Br] can be separated like a heterogeneous catalyst through solvent precipitation, and reused at least three times for the reaction without significant loss of activity.

Original languageEnglish
Pages (from-to)30-34
Number of pages5
JournalJournal of Molecular Catalysis A: Chemical
Volume303
Issue number1-2
DOIs
Publication statusPublished - 2009 Apr 15

Keywords

  • Copolymer
  • Cyclic carbonate
  • Ionic liquid

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Physical and Theoretical Chemistry

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