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Synfacts 2006(7): 0736-0736  
DOI: 10.1055/s-2006-941891
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Synergistic Hybrid Catalyst for Cyclic Carbonate Synthesis

Contributor(s): Yasuhiro Uozumi, Masahiro Kimura
T. Takahashi, T. Watahiki, S. Kitazume, H. Yasuda, T. Sakakura*
National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan
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Publication History

Publication Date:
22 June 2006 (online)

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Significance

A highly active immobilized phosphonium salt catalyst for the synthesis of propylene carbonate 3 was reported. Thus, 1 mol% silica-supported phosphonium iodide 2 catalyzed the reaction of propylene oxide 1 with carbon dioxide to give propylene carbonate 3 in quantitative yield. The rate constant of this reaction with catalyst 2 was about 300 times higher than that with P(n-Bu)4I.