Selective conversion of levulinic and formic acids to γ-valerolactone with the shvo catalyst

Viktória Fábos, László T. Mika, I. Horváth

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

The selective transfer hydrogenation of levulinic acid (LA) with formic acid (FA) to 4-hydroxyvaleric acid (4-HVA) and carbon dioxide followed by the intramolecular dehydration of 4-HVA to γ-valerolactone (GVL) are key steps of the conversion of carbohydrate-based biomass to GVL, which can be used for the production of both energy and carbon-based products. LA was converted to GVL in the presence of a small excess of FA and the Shvo catalysts {[2,5-Ph 2-3,4-(Ar)25-C4CO)] 2H}Ru2(CO)4(μ-H)]} (Ar = p-MeOPh (1a), p-MePh (1b), Ph (1c)). The reactions were performed at 100 C with yields higher than 99% after a few hours. The formation of 1,4-pentanediol and 2-methyltetrahydrofuran remained below detection limits. The only side products were water and carbon dioxide, as expected, which were easily removed and separated from the product GVL under reduced pressure. The Shvo catalyst 1c was recycled four times without losing catalytic activity, and the product GVL was isolated each time as a colorless liquid of 99.9% purity with only trace amounts of water present.

Original languageEnglish
Pages (from-to)181-187
Number of pages7
JournalOrganometallics
Volume33
Issue number1
DOIs
Publication statusPublished - Jan 13 2014

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formic acid
Levulinic Acids
Formates
Carbon Dioxide
catalysts
acids
Catalysts
Water
Carbon Monoxide
products
Dehydration
Hydrogenation
carbon dioxide
Catalyst activity
Biomass
Carbon
Carbohydrates
carbohydrates
Liquids
biomass

ASJC Scopus subject areas

  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Selective conversion of levulinic and formic acids to γ-valerolactone with the shvo catalyst. / Fábos, Viktória; Mika, László T.; Horváth, I.

In: Organometallics, Vol. 33, No. 1, 13.01.2014, p. 181-187.

Research output: Contribution to journalArticle

Fábos, Viktória ; Mika, László T. ; Horváth, I. / Selective conversion of levulinic and formic acids to γ-valerolactone with the shvo catalyst. In: Organometallics. 2014 ; Vol. 33, No. 1. pp. 181-187.
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