Highly active and robust organic–inorganic hybrid catalyst for the synthesis of cyclic carbonates from carbon dioxide and epoxides

Takashi Sakai, Yoshihiro Tsutsumi, Tadashi Ema

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

A high-throughput combinatorial strategy enabled us to find a highly active organic–inorganic hybrid catalyst for the production of cyclic carbonates from CO2 and epoxides. The best hybrid catalyst 1a was prepared by the coupling of 3-(triethoxysilyl)propyltriphenylphosphonium bromide and mesoporous silica, and the organic and inorganic moieties had a synergistic effect on catalytic activity. The pore size of silica was found to be important for catalysis; mesoporous silica with the mean pore size of 19 nm exhibited much better performance than silica with that of 6 nm. The solvent-free and metal-free reactions proceeded successfully under very mild conditions (1 MPa, 90 °C, 1 mol% loading of catalyst, 6 h), and the hybrid catalyst could be recycled ten times.

Original languageEnglish
Pages (from-to)337-334
Number of pages4
JournalGreen Chemistry
Volume10
Issue number3
DOIs
Publication statusPublished - Mar 1 2008

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

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