6533b7d3fe1ef96bd1260074

RESEARCH PRODUCT

Enhanced Heterogeneous Catalytic Conversion of Furfuryl Alcohol into Butyl Levulinate

Gadi RothenbergMario PagliaroPiera Demma CaràRosaria CiriminnaN. R. Shiju

subject

inorganic chemicalsCondensation polymerGeneral Chemical EngineeringesterificationNiobiumHeterogeneous catalysisCatalysisCatalysisFurfuryl alcoholalcoholschemistry.chemical_compoundEnvironmental ChemistryOrganic chemistryGeneral Materials ScienceFuransbiomassorganic chemicalsCondensationMesoporous silicasolid acidsSilicon DioxideLevulinic AcidsGeneral Energyheterogeneous catalysischemistryYield (chemistry)ZeolitesPolystyrenesSulfonic AcidsSelectivity

description

We study the catalytic condensation of furfuryl alcohol with 1-butanol to butyl levulinate. A screening of several commercial and as-synthesized solid acid catalysts shows that propylsulfonic acid-functionalized mesoporous silica outperforms the state-of-the-art phosphotungstate acid catalysts. The catalyst is prepared via template-assisted sol-gel polycondensation of TEOS and MPTMS. It gives 96 % yield (and 100 % selectivity) of butyl levulinate in 4h at 110 °C. Reaction profiles before and after a hot filtration test confirm that the active catalytic species do not leach into the solution. The catalyst synthesis, characterization, and mode of operation are presented and discussed. Sour cat: Screening several commercial and as-synthesized solid acid catalysts in the condensation of furfuryl alcohol with 1-butanol to afford butyl levulinate shows that the best catalyst is a sulfonic acid-functionalized mesoporous silica, allowing a significant improvement over the state-of-the-art. The catalyst selectively affords n-butyl levulinate in relatively short time at 110 °C. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

10.1002/cssc.201301027https://doi.org/10.1002/cssc.201301027