21133-22-2

Upstream product

• 886-77-1 (E,E)-1,5-di-(2-furyl)pent-1,4-dien-3-one 
• 144850-49-7 difurfurylideneacetone 
• 886-77-1 1,5-bis-(2-furanyl)-1,4-pentandien-3-one 
• 98-01-1 furfural 

Relevant academic research and scientific papers

Hydrodeoxygenation of furfural-acetone condensation adducts to tridecane over platinum catalysts

The total hydrodeoxygenation of furfural-acetone condensation adduct (F2A) for obtaining tridecane is studied in this work. Three different Pt catalysts (using alumina, activated carbon, and graphite-MgZr oxide composite as supports) were tested using acetone as solvent (4.5 mmol/L of adduct) in a stirred batch reactor at 493 K and 5.5 MPa. Best results were obtained with Pt/Al2O3, yielding 21.5% of n-tridecane after 24 h reaction time, with carbon balances close to 96%. The performance of the carbon supported catalysts was poorer (both in terms of conversion, tridecane selectivity and carbon mass balance closure) mainly because of the strong adsorption of reactants and reaction intermediates, whereas the MgZr-HSAG also present activity for the undesired cleavage of C-C bonds of the condensation adducts. A kinetic model, considering serial-parallel reaction steps and first order dependence on the organic reactant has been successfully applied for modelling the results obtained with the three catalysts. The dependence of the kinetic constants on the catalyst properties suggest that metal dispersion and the concentration of weak acid sites are the main parameters affecting catalyst performance.

Synthesis of Renewable Lubricant Alkanes from Biomass-Derived Platform Chemicals

The catalytic synthesis of liquid alkanes from renewable biomass has received tremendous attention in recent years. However, bio-based platform chemicals have not to date been exploited for the synthesis of highly branched lubricant alkanes, which are currently produced by hydrocracking and hydroisomerization of long-chain n-paraffins. A selective catalytic synthetic route has been developed for the production of highly branched C23 alkanes as lubricant base oil components from biomass-derived furfural and acetone through a sequential four-step process, including aldol condensation of furfural with acetone to produce a C13 double adduct, selective hydrogenation of the adduct to a C13 ketone, followed by a second condensation of the C13 ketone with furfural to generate a C23 aldol adduct, and finally hydrodeoxygenation to give highly branched C23 alkanes in 50.6 % overall yield from furfural. This work opens a general strategy for the synthesis of high-quality lubricant alkanes from renewable biomass.

EFFECT OF THE NATURE OF THE SOLVENT ON THE RATE AND MECHANISM OF THE CATALYTIC HYDROGENATION OF DIFURFURYLIDENEACETONE

It was established that the hydrogenation of difurfurylideneacetone on a skeletal Ni-Ti-Al catalyst at atmospheric pressure proceeds nonselectively.The rate of hydrogenation in both aprotic and protic solvents increases as their overall electrophilicity increases.The process is realized selectively under hydrogen pressure.By changing the type of solvent one can obtain a catalyzate enriched in various reaction products.