Journal
CHEMCATCHEM
Volume 8, Issue 22, Pages 3458-3462Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201600872
Keywords
biomass; green chemistry; hydrogenation; levulinic acid; sustainable chemistry
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Funding
- University Grant Commission (UGC-SAP), India
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A versatile and efficient catalyst for the hydrogenation of biomass-derived levulinic acid to g-valerolactone (GVL) by using a RuCl3/polyethylene glycol (PEG-400) /H2O catalyst system was developed. The catalysis system was also found to be active for the hydrogenation of levulinate ester. The present protocol proceeded with 99% conversion and 99% selectivity towards GVL without the formation of any side products. Remarkably, the reaction did not require sensitive phosphine ligands, a base, additives, or a co-catalyst to promote the reaction. This method involved the use of environmentally benign PEG-400 and water as a solvent, which is nontoxic, inexpensive, commercially available, nonflammable, and easy to handle. The RuCl3/PEG-400/H2O catalyst system could be easily recycled and reused six times with high activity and selectivity.
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