Search results for "Gamma-valerolactone"

showing 2 items of 2 documents

Easy Method for the Transformation of Levulinic Acid into Gamma-Valerolactone Using a Nickel Catalyst Derived from Nanocasted Nickel Oxide

2019

Different nickel catalysts have been tested for the transformation of levulinic acid into &gamma

inorganic chemicalsMaterials scienceHydrogenValerolactonechemistry.chemical_element02 engineering and technology010402 general chemistrylcsh:Technology01 natural sciencesArticleHydrothermal circulationCatalysischemistry.chemical_compoundLevulinic acidNickelotorhinolaryngologic diseasesLevulinic acidheterocyclic compoundsGeneral Materials ScienceNanocastinglcsh:Microscopylcsh:QC120-168.85lcsh:QH201-278.5lcsh:Torganic chemicalsNickel oxideNon-blocking I/O021001 nanoscience & nanotechnology0104 chemical sciencesgamma-ValerolactoneNickelHydrothermal reactionChemical engineeringchemistrylcsh:TA1-2040lcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringHigh temperature waterlcsh:Engineering (General). Civil engineering (General)0210 nano-technologylcsh:TK1-9971Materials
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Conversion of levulinic acid to γ-valerolactone over Zr-containing metal-organic frameworks: Evidencing the role of Lewis and Brønsted acid sites

2021

Zr-containing UiO-66 and MOF-808 are evaluated for converting levulinic acid (LA) into γ-valerolactone (GVL) through various routes: (i) Step-wise esterification of LA to n-butyl levulinate (nBuL) and Meerwein-Ponndorf-Verley (MPV) reduction to GVL; (ii) One-pot two-steps esterification with n-butanol followed by MPV reduction with sec-butanol; and (iii) direct conversion of LA into GVL through a tandem reaction. Selection of this multistep complex reaction evidences the participation of the different acid sites (Lewis or Brønsted) of the material in each individual step: Brønsted-induced acid sites catalyze esterification reaction efficiently, while Lewis acid sites are the preferred sites…

ChemistryProcess Chemistry and TechnologyZirconium MOFsCatalysisCatalysischemistry.chemical_compoundSulfationLevulinic acidCascade reactionUiO-66Levulinic acidOrganic chemistryMetal-organic frameworkLewis acids and basesPhysical and Theoretical ChemistrySulfateGamma-valerolactoneBrønsted–Lowry acid–base theoryMOF-808Molecular Catalysis
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