Functional group dependence of the acid catalyzed ring opening of biomass derived furan rings: an experimental and theoretical study

Protonated titanate nanotubes as a highly active catalyst for the synthesis of renewable diesel and jet fuel range alkanes

“…b) Strong acid sites have higher activity for the ring-opening reaction of furan compounds which can facilitate the HDO of furan compounds [65]. In the recent work of Gordon and Silks et al [66], it was found that the ring-opening reaction (catalyzed by acid site) could greatly decrease the reaction temperature for the HDO of furan compounds to alkanes.…”

“…In In literature [63][64][65][66], it has been suggested that the strong acid sites are favorable for the HDO of biomass derived oxygenates from two aspects. a) Strong acid sites are more active than weak acid sites for the dehydration [63].…”

Deuterium‐Labeling Study of the Hydrogenation of 2‐Methylfuran and 2,5‐Dimethylfuran over Carbon‐Supported Noble Metal Catalysts

“…[4] Further upgrading of these substituted furans to valuable chemicals involves hydrogenation of the aromatic furan ring and its opening by hydrogenolysis, which typically result in mixtures of substituted tetrahydrofurans (THFs), ketones, and alcohols. [5] Although the highlys elective hydrogenation of 5-hydroxymethylfurfural to 2,5-dimethylfuran and furfural to 2-methylfuran has been reported, [6] improving the selectivityo f the 2,5-dimethylfurana nd 2-methylfuran hydrogenation and hydrogenolysis reactions is crucial for producing the desired products in high yields. Moreover,w hereas many studies reportP ta nd Pd to be highly promising catalysts for these reactions, [7] the current understanding of the hydrogenation pathways of 2-methylfuran and 2,5-dimethylfuran are still ratherl imited.…”

Diesel and Alkane Fuels From Biomass by Organocatalysis and Metal–Acid Tandem Catalysis

“…[5] The HDO of the reductive pinacol coupling products of furfural and 5-methylfurfural (MF) by Pt/C and solid acid TaOPO 4 afforded high yields of alkanes. [11] Alternatively, opening the furan rings first under mild conditions (which is applicable only to certain types of furan rings [12] ), followed by HDO, produces alkanes more selectively. [13] Scheme 1.…”

“…Herein we report the selective and quantitative coupling of HMF to 5,5'-di(hydroxymethyl)furoin (DHMF) under solvent-free conditions using 1 mol % of an organic N-heterocyclic carbene (NHC) catalyst, and the subsequent transformations of DHMF into oxygenated diesel fuels through hydrogenation, etherification or esterification; as well as high-quality kerosene/jet fuels through a highly selective HDO process that produces linear hydrocarbons (96 % C [10][11][12] linear alkanes) nearly quantitatively in the organic phase (Scheme 1, route D).…”