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Issue 6, 2012
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One-pot conversion of CO2 and glycerol to value-added products using propylene oxide as the coupling agent

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Abstract

The effective conversion of carbon dioxide (CO2) and glycerol is an interesting topic in green chemistry. In this work, we studied the simultaneous transformation of CO2 and glycerol to value-added products using propylene oxide (PO) as coupling agent catalyzed by alkali metal halides. The effects of reaction temperature, CO2 pressure, reaction time, amount of catalyst, and PO to glycerol molar ratio on the reaction were investigated. It was discovered that the coupled catalytic reaction could produce glycerol carbonate (GC), propylene glycol (PG) and propylene carbonate (PC) very effectively using KI, an abundant and cheap salt, as the catalyst. The main reasons are that glycerol and PG are not only the reactant and product, respectively, but also act as the effective co-catalysts to promote the key step of the coupled reaction, and the reaction is thermodynamically favorable. This effective and atom economic route to convert glycerol and CO2 simultaneously has great potential application.

Graphical abstract: One-pot conversion of CO2 and glycerol to value-added products using propylene oxide as the coupling agent

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Publication details

The article was received on 31 Jan 2012, accepted on 03 Apr 2012 and first published on 03 Apr 2012


Article type: Paper
DOI: 10.1039/C2GC35150A
Citation: Green Chem., 2012,14, 1743-1748
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    One-pot conversion of CO2 and glycerol to value-added products using propylene oxide as the coupling agent

    J. Ma, J. Song, H. Liu, J. Liu, Z. Zhang, T. Jiang, H. Fan and B. Han, Green Chem., 2012, 14, 1743
    DOI: 10.1039/C2GC35150A

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