Jump to main content
Jump to site search

Issue 5, 2013
Previous Article Next Article

Substrate dependent synergetic and antagonistic interaction of ammonium halide and polyoxometalate catalysts in the synthesis of cyclic carbonates from oleochemical epoxides and CO2

Author affiliations

Abstract

Organic halides and polyoxometalates (POMs) were studied as catalyst systems for the insertion of carbon dioxide into epoxides originating from plant oils as biogenic feedstock. In the formation of methyl oleate carbonate, synergistic rate acceleration and increased cis-selectivity were observed using ammonium halide and transition metal substituted silicotungstate POMs catalysts in a combined system. Mechanistic insight into the cooperative action was gained by kinetic measurements and analysis of the stereochemical outcome of the reaction. For poly-epoxidised oleochemicals as substrates, the simple ammonium halide catalyst gave better performance as side reactions were encountered with the POM-containing system.

Graphical abstract: Substrate dependent synergetic and antagonistic interaction of ammonium halide and polyoxometalate catalysts in the synthesis of cyclic carbonates from oleochemical epoxides and CO2

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Oct 2012, accepted on 11 Feb 2013 and first published on 04 Apr 2013


Article type: Paper
DOI: 10.1039/C3GC36710J
Green Chem., 2013,15, 1173-1182

  •   Request permissions

    Substrate dependent synergetic and antagonistic interaction of ammonium halide and polyoxometalate catalysts in the synthesis of cyclic carbonates from oleochemical epoxides and CO2

    J. Langanke, L. Greiner and W. Leitner, Green Chem., 2013, 15, 1173
    DOI: 10.1039/C3GC36710J

Search articles by author

Spotlight

Advertisements