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An efficient method for the synthesis of cyclic carbonates from CO2 and epoxides using an effective two-component catalyst system: Polymer-supported quaternary onium salts and aqueous solutions of metal salts

Paper ID Volume ID Publish Year Pages File Format Full-Text
39608 45828 2014 9 PDF Available
Title
An efficient method for the synthesis of cyclic carbonates from CO2 and epoxides using an effective two-component catalyst system: Polymer-supported quaternary onium salts and aqueous solutions of metal salts
Abstract

•An efficient method to synthesize the cyclic carbonates from CO2 and epoxides.•Catalytic system consisting of polymer-supported quaternary onium salts and ZnI2.•A method offers the possibility of easy recycling of catalyst.•Cyclic carbonates were obtained in mild conditions and in good yields.

A highly efficient method for the synthesis of cyclic carbonates from carbon dioxide and epoxides in the presence of polymer-supported quaternary onium salts (PS-Q+X−) and aqueous solution of metal salts under mild conditions, is described. In comparison with conventional homogeneous catalysts, immobilized tributylmethylammonium chloride (PS-TBMAC) is a recyclable, effective catalyst for the studied reaction. The presence of an aqueous solution of zinc iodide as a co-catalyst enhances significantly the catalytic activity of PS-TBMAC. Using this two-component catalyst system (polymer-supported quaternary onium salts and aqueous solution of metal salts), the reaction of CO2 with selected epoxides can be conducted with high product yield (71–91%) and selectivity (97–99%) under mild reaction conditions (temperature 110 °C and initial CO2 pressure 0.9 MPa). Propylene carbonate was obtained in the best yield (91%). In addition, the advantages of this method include a short reaction time, solvent-free conditions, and an easy separation of catalyst system.

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Keywords
Cyclic alkylene carbonates; Carbon dioxide; Epoxides; Polymer-supported quaternary onium salts; Metal salts
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An efficient method for the synthesis of cyclic carbonates from CO2 and epoxides using an effective two-component catalyst system: Polymer-supported quaternary onium salts and aqueous solutions of metal salts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 482, 22 July 2014, Pages 266–274
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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