Journal
CHEMCATCHEM
Volume 10, Issue 11, Pages 2417-2423Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201800371
Keywords
carbohydrates; isomerization; Lewis acids; metal-organic frameworks; zeolites
Categories
Funding
- Catalysis Center for Energy Innovation, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0001004]
- Brazilian National Council for Scientific and Technological Development (CNPq) [202982/2014-9]
Ask authors/readers for more resources
Modulated zirconium metal-organic framework UiO-66 is shown to catalyze the isomerization of D-glucose to D-fructose in alcohol media. Fructose selectivity can change depending on solvent choice. We hypothesize that the difference in selectivity is related to a combined effect of adsorption and solvation effects, which may lead to the high formation of alkylglucosides in depletion of fructose if methanol or ethanol are used. A fructose selectivity of 72% at 82% glucose conversion in 1-PrOH was achieved. The reaction mechanism was investigated using nuclear magnetic resonance spectroscopy. We demonstrate that UiO-66 isomerizes glucose to fructose through an intramolecular C2-C1 hydride transfer. In addition, we show that modulated UiO-66 is a highly active and stable catalyst at the reaction conditions, showing great potential for other sugar reactions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available