Highly efficient, rapid, and practical conversion of carbohydrate into 5-hydroxymethylfurfural using a continuous-flow reactor with 1-(4-sulfobutyl)-3-methylimidazolium bromide ionic liquid as a catalyst

Production of 5-hydroxymethylfurfural from fructose via inherent catalytic properties of a biphasic system without external catalyst addition

“…35 More recently, Nguyen et al (2023) reported that 1-(4-sulfobutyl)-3-methylimidazolium bromide produced a favorable 5-HMF yield of about 68% in DMSO at 140 °C for 5 minutes. 36 While the synergy of ABSs with fluidized bed reactors has proven to be highly effective for 5-HMF synthesis, the material costs, thorough monitoring, and control required for these reactors present challenges, limiting their widespread application.…”

Efficient Conversion of Carbohydrates into 5-Hydroxymethylfurfural Using Graphitic Carbon Nitride Bearing Brönsted Acid Sites

“…It is an intermediary in synthesizing several fine chemicals and polymers based on furan. 4 It has the potential to undergo conversion of various biofuel molecules, including ethyl levulinate, 5-ethoxymethylfurfural, and 2,5-dimethylfuran (2,5-DMF) as well as important chemicals such as levulinic acid, furfuryl alcohol, 2,5-diformylfuran (DFF), 2,5-furandicarboxylic acid, terephthalic acid, and caprolactone. Significant academic interest has been shown in the synthesis of HMF from glucose utilizing one-pot procedures.…”

“…The 5-hydroxymethylfurfural (HMF) substance has significant importance as a platform compound derived from biomass. It is an intermediary in synthesizing several fine chemicals and polymers based on furan . It has the potential to undergo conversion of various biofuel molecules, including ethyl levulinate, 5-ethoxymethylfurfural, and 2,5-dimethylfuran (2,5-DMF) as well as important chemicals such as levulinic acid, furfuryl alcohol, 2,5-diformylfuran (DFF), 2,5-furandicarboxylic acid, terephthalic acid, and caprolactone.…”

Efficient Production of 5-Hydroxymethylfurfural from Concentrated Carbohydrates and Raw Biomass over SnP2O7–SnO2 Catalysts

“…Typically, HMF is produced by dehydrating cellulosic C 6 monosaccharides such as glucose and fructose, of which glucose is more attractive because of its lower price. − However, the catalytic conversion of glucose to HMF is quite arduous since the involvement of cascade glucose isomerization and fructose dehydration reactions, where different acid sites are required for the two processes, i.e., Lewis acid can promote the glucose isomerization to fructose, whereas Brønsted acid can facilitate the dehydration of fructose to HMF. , Recently, significant advancements have been accomplished in the design of solid acid catalysts for the glucose-to-HMF transformation with both Lewis and Brønsted acid sites, such as, carbonaceous materials, , zeolites, , metal oxides, , and metal–organic frameworks. , Especially, the synergetic effect between the Lewis and Brønsted sites has been demonstrated to be essential to accomplish a satisfactory HMF yield from glucose. , However, there is still a lack of an effective approach to subtly modulate the distribution of Lewis and Brønsted sites of the catalyst, which is nonetheless the prerequisite to construct efficient solid acid catalysts for the manufacture of HMF.…”