Journal
GREEN CHEMISTRY
Volume 23, Issue 5, Pages 1983-1988Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1gc00100k
Keywords
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Funding
- National Natural Science Foundation of China [22078275, 21676223]
- Key-Area Research and Development Program of Guangdong Province [2020B0101070001]
- Fundamental Research Funds for the Central Universities [20720190014]
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By establishing hydrogen bonds between levulinic acid and choline chloride, the study successfully enhanced the hydrogenation efficiency of the acyl group in levulinic acid over Ru/C, achieving high yields of GVL synthesis under solvent-free conditions.
It is highly attractive to produce gamma-valerolactone (GVL), an all-purpose biomass-derived platform molecule, by the solvent-free hydrogenation of levulinic acid (LA), but the intense adsorption of the carboxylic group over the catalyst will block the active sites of the catalyst. In this study, the established hydrogen bond between LA and choline chloride (ChCl) suppressed the adsorption of the carboxylic group but enhanced the adsorption of the acyl group of LA over Ru/C, which greatly improved the hydrogenation of the acyl group in LA to afford quantitative GVL yield under solvent-free conditions.
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