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Issue 3, 2011
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Esterification of glycerol with acetic acid using double SO3H-functionalized ionic liquids as recoverable catalysts

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Abstract

Esterification of glycerol with acetic acid was studied using a series of Brønsted acidic ionic liquids as catalysts. The results indicate that double SO3H-functionalized ionic liquids show high catalytic activity and fair reusability even at very low catalyst loadings, while the conventional non-functionalized ionic liquids show poor activity. The Brønsted acidity–catalytic activity relationships were also investigated and the results showed that the sequence of the catalytic activity observed in the transformation was in good agreement with the Brønsted acidity order determined by the Hammett method.

Graphical abstract: Esterification of glycerol with acetic acid using double SO3H-functionalized ionic liquids as recoverable catalysts

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Article information


Submitted
26 Oct 2010
Accepted
07 Jan 2011
First published
09 Feb 2011

Green Chem., 2011,13, 697-701
Article type
Paper

Esterification of glycerol with acetic acid using double SO3H-functionalized ionic liquids as recoverable catalysts

X. Liu, H. Ma, Y. Wu, C. Wang, M. Yang, P. Yan and U. Welz-Biermann, Green Chem., 2011, 13, 697
DOI: 10.1039/C0GC00732C

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