Imidazolium zinc tetrahalide-catalyzed coupling reaction of CO2 and ethylene oxide or propylene oxide

  • Hoon Sik Kim*
  • , Jai Jun Kim
  • , Honggon Kim
  • , Ho Gyeom Jang
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Imidazolium zinc tetrahalides, (1-R-3-methylimidazolium) 2ZnX2Y2 (R=CH3, C2H 5, n-C4H9, CH2C6H 5; X=Cl, Br; Y=Cl, Br), prepared by reacting ZnX2 with (1-R-3-methylimidazolium)Y, were found to have surprisingly high activities for the coupling reaction of CO2 and ethylene oxide or propylene oxide to produce corresponding cyclic carbonate. The catalytic activity of imidazolium zinc tetrahalide was greatly influenced by the nature of halide groups bonded to the zinc center. The catalytic activity was found in the order of [ZnBr4]2->[ZnBr2Cl2] 2-≫[ZnCl4]2-. The turnover frequencies (TOF: h-1) increased with increasing temperature, but remained almost unchanged with the increase of pressure.

    Original languageEnglish
    Pages (from-to)44-46
    Number of pages3
    JournalJournal of Catalysis
    Volume220
    Issue number1
    DOIs
    Publication statusPublished - 2003 Nov 15

    Bibliographical note

    Funding Information:
    This work was financially supported by the Ministry of Environment and KOSEF (CRM).

    Keywords

    • Carbon dioxide
    • Cyclic carbonate
    • Ethylene carbonate
    • Ethylene oxide
    • Imidazolium halide
    • Ionic liquid
    • Propylene carbonate
    • Propylene oxide
    • Zinc halide
    • Zinc tetrahalide

    ASJC Scopus subject areas

    • Catalysis
    • Physical and Theoretical Chemistry

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