Conversion of Cellulose to Hexitols Catalyzed by Ionic Liquid‐Stabilized Ruthenium Nanoparticles and a Reversible Binding Agent
2009-12-18
SCID: 54.1/fukzfr8u
Discuss with AI
1-n-butyl-3-methylimidazolium chloride ([BMIM]Cl)cellulose conversion to hexitolsionic liquid-stabilized ruthenium nanoparticlesreversible boronic acid binding agentsodium formate/formic acid hydrogen donors
Figures from the paper
Abstract (AI)
A reversible cellulose binding agent, 1-(4′-(4′′-(2′′′-boronobenzyl)piperazinyl)-2′-butenyl)-3-n-butylimidazolium chloride 1, is synthesized by reacting 2-((4′-allylpiperazinyl)methyl) phenylboronic acid with 3-allyl-1-n-butylimidazolium chloride. 1 is miscible with ionic liquids, and when combined with Ru nanoparticles as a catalyst, cellulose can be converted to polyols under mild conditions. The catalyst can be recycled with sustained activity.
Key Findings
1
A conjugate reversible cellulose binding agent (compound 1) combining a boronic acid and an ionic liquid moiety was synthesized and is fully miscible with common ionic liquids.
2
Compound 1 binds reversibly to cellulose diols, solubilizes/activates cellulose, and alone hydrolyzes cellulose to α-glucose with 95% conversion after 5 h at 80 °C.
3
Ionic liquid-stabilized Ru0 nanoparticles (~4.0 nm) combined with compound 1 convert cellulose to hexitols in high yields (up to 100% conversion and 94% sorbitol yield using sodium formate).
4
The catalytic system is recyclable with sustained activity over at least five runs and shows Ru leaching below 3 ppm by ICP analysis.
5
Using formic acid/Na+ formate as hydrogen donors and ionic liquids likely facilitates hydrogen release and efficient glucose hydrogenation to hexitols by the Ru nanoparticles.
Research Object
Cellulose being converted to hexitols using ionic liquid-stabilized ruthenium nanoparticles and a reversible boronic-acid-based binding agent
Research Subject
Catalytic conversion process efficiency and mechanism by which the reversible binding agent (compound 1) combined with ionic-liquid-stabilized Ru nanoparticles solubilizes cellulose, promotes hydrolysis to glucose and hydrogenation to hexitols, catalyst recyclability, and yields under mild conditions
Publication Details
Publication Date
2009-12-18
Journal
Publisher
ISSN
Open access PDF
Access Type
Author Information
Download PDF
Subscribe to digest