Solid imidazolium halide catalysts for the solvent free synthesis of glycerol carbonate

• MCM-41-Imi/x (x = Cl, Br and I) was prepared by post-grafting method.
• All the catalysts exhibited ordered mesoporous straight channels.
• Complete conversion of glycidol was achieved with CO2 with all the catalysts.

The synthesis of glycidol carbonate via the cycloaddition of carbon dioxide and glycidol had been studied using MCM-41-Imi/x (x = Cl, Br and I) catalysts under solvent free condition. Within the limit of experimental error, all three catalysts showed a yield > 97.2% at 90 °C, 20 bar CO2 pressure and a reaction time of 4 h.

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