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Issue 5, 2013
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New generation biofuels: γ-valerolactone into valeric esters in one pot

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Abstract

Ethyl valerate and pentyl valerate, suitable as a gasoline additive and diesel component respectively, can be obtained in a one pot one step reaction from γ-valerolactone, readily available from lignocellulosic biomass. The reaction takes place in ethanol under H2 through nucleophilic addition of the alcohol to the carboxylic group giving hydroxypentanoate, dehydration to pentenoate and hydrogenation to the saturated ester. The bifunctional catalyst used consists of a non noble metal, namely copper, supported on an amorphous weakly acidic material, therefore representing an interesting alternative to Pt–zeolite catalysts. Pentyl valerate can be obtained in one pot with conversions >90% and selectivity up to 83%.

Graphical abstract: New generation biofuels: γ-valerolactone into valeric esters in one pot

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Supplementary files

Article information


Submitted
23 Nov 2012
Accepted
23 Nov 2012
First published
23 Nov 2012

RSC Adv., 2013,3, 1302-1306
Article type
Communication

New generation biofuels: γ-valerolactone into valeric esters in one pot

C. E. Chan-Thaw, M. Marelli, R. Psaro, N. Ravasio and F. Zaccheria, RSC Adv., 2013, 3, 1302
DOI: 10.1039/C2RA23043G

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