A smart catalyst system for the valorization of renewable furfural in aliphatic alcohols

Abstract

A highly efficient and selective oxidative condensation–hydrogenation process of renewable furfural with aliphatic alcohols mediated by supported Pt catalysts in a one-pot reactor is developed.

Biomass Derived Chemicals: Furfural Oxidative Esterification to Methyl-2-furoate over Gold Catalysts

“…Up to now, several examples dealing with the oxidation of 2-FA in the presence of heterogeneous catalysts have been reported [23][24][25][27][28][29]. These papers mainly deal with the use of gold supported catalysts [25,[27][28][29] demonstrating the current efforts to modify furfural-based derivatives by gold catalysis, due to the fact that such supported metal systems are mainly used as suitable catalysts for selective oxidation.…”

“…Nevertheless, a highly efficient and selective one-pot process involving the oxidative condensation and the hydrogenation of furfural with aliphatic alcohols catalyzed by metallic platinum has been reported very recently [23]. The authors examined several typical supported Pt catalysts and bases as catalysts for the reaction and found high conversion and selectivity when working in the presence of 5% Pt/HT (HT = hydrotalcite Mg/Al ratio equal to 3) and of potassium carbonate either in the furfural-ethanol-O 2 system, or in the furfural-n-propanol-O 2 one.…”

“…Furfural oxidative esterification with an alcohol in the presence of oxygen is reported in Scheme 1a. It has to be considered that the condensation reaction of furfural and aldehyde is also feasible to impel two carbon molecules together and produce longer hydrocarbon chains and low volatile liquids fuels [23]. Acetone and aldehydes can originate from the oxidation of secondary and primary alcohols in the presence of molecular oxygen [24].…”

Cascade aldol condensation of an aldehydeviathe aerobic oxidation of ethanol over an Au/NiO composite

“…Currently, the catalytic conversion pathways extend to ethanol oxidation condensation, which could provide an important breakthrough for diversication and sustainable development of hydrocarbon biofuel production. [14][15][16] Oxide-supported gold nanoparticles have emerged as a promising heterogeneous catalyst in the aerobic oxidation of alcohols. [17][18][19] For example, Haruta et al reported the N-formylation of amines via the aerobic oxidation of methanol over supported gold nanoparticles.…”

CO2-switchable polymer-hybrid silver nanoparticles and their gas-tunable catalytic activity

“…Recently, metal NPs were studied for application in "smart" catalysts with switchable, tunable and reusable catalytic properties. 9,[16][17][18][19][20][21][22][23] To be successfully applied, metal NPs should be not only dispersed but also sensitive to external stimulus. 9,[16][17][18][19][20][21][22][23] Functionalization of metal NPs with stimuliresponsive polymers represents one of the choices to satisfy such requirements.…”