Jump to main content
Jump to site search

Issue 10, 2012
Previous Article Next Article

A biopolymer mediated efficient synthesis of cyclic carbonates from epoxides and carbon dioxide

Author affiliations

Abstract

A promising application of carboxymethyl cellulose (CMC), which is a congener of the cellulose family, as a supporting material for a variety of imidazolium based ionic liquid catalysts in the chemical fixation of CO2 has been studied here. The ionic liquids immobilized on the carboxymethyl cellulose (CMIL) showed high catalytic activity and selectivity in the cycloaddition of carbon dioxide with propylene oxide (PO) resulting in propylene carbonate (PC) under mild and solvent free conditions. A new pathway was proposed based on the density functional theory (DFT) calculations performed at the B3LYP/6-31G (d,p) level, where the carboxyl and hydroxyl moieties on the CMC were found to act synergistically with the halide ions to eventuate in the cycloaddition reaction. The carboxyl group entities on the carboxymethyl cellulose support supposedly stabilize the product complex via strong hydrogen bonds, thereby promoting the reaction. The catalyst system also displayed good reusability.

Graphical abstract: A biopolymer mediated efficient synthesis of cyclic carbonates from epoxides and carbon dioxide

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 Jun 2012, accepted on 13 Aug 2012 and first published on 14 Aug 2012


Article type: Paper
DOI: 10.1039/C2GC35942A
Citation: Green Chem., 2012,14, 2933-2940
  •   Request permissions

    A biopolymer mediated efficient synthesis of cyclic carbonates from epoxides and carbon dioxide

    K. R. Roshan, G. Mathai, J. Kim, J. Tharun, G. Park and D. Park, Green Chem., 2012, 14, 2933
    DOI: 10.1039/C2GC35942A

Search articles by author

Spotlight

Advertisements