Efficient conversion of glucose to 5-hydroxymethylfurfural using bifunctional partially hydroxylated AlF₃

Abstract

Mesoporous AlF3 material bearing both Lewis and Brønsted acid sites exhibits high catalytic performance in glucose-to-fructose isomerization and subsequent dehydration to HMF (57.3% yield).

Dehydration of fructose and glucose to 5-hydroxymethylfurfural over Al-KCC-1 silica

“…Therefore HMF selectivity and yield were reduced. This is in agreement with the other manuscrips that were published in this field [21,[58][59][60][61] . In Fig.…”

Simply Assembly of Acidic Nanospheres for Efficient Production of 5‐Ethoxymethylfurfural from 5‐Hydromethylfurfural and Fructose

“…Lignocellulosic biomass is considered to be the most abundant resource on the earth, which has been extensively explored as a renewable feedstock for the production of value‐added chemicals and biofuels . Among various chemicals derived from biomass, 5‐hydroxymethylfurfural (HMF) is an important platform molecule, and has a wide range applications in the manufacture of plastics, surfactants, solvents, fuels, and pharmaceuticals …”

“…[4,5] Among variousc hemicals derived from biomass,5hydroxymethylfurfural (HMF) is an important platform molecule,a nd has aw ide range applications in the manufacture of plastics,s urfactants,s olvents,f uels,a nd pharmaceuticals. [6][7][8][9][10] In general, both homogeneous and heterogeneous catalysts can catalyze carbohydrates such as fructose,g lucose,a nd cellulose being transformed into HMF under relatively harsh conditions. [11][12][13][14] However, HMFi sq uite unstable in acidic media or even at room temperature.…”

One‐Pot Conversion of Carbohydrates into 5‐(Hydroxymethyl)furfural using Heterogeneous Lewis‐Acid and Brønsted‐Acid Catalysts

“…Surprisingly, Lu et al. reported that a high HMF yield of 57.3 % was achieved by using bifunctional partially hydroxylated AlF 3 , which possesses both Lewis acid and Brønsted acid sites …”

“…[33] Surprisingly,L uet alr eported that ah igh HMF yield of 57.3 %w as achieved by using bifunctionalp artially hydroxylated AlF 3 ,w hich possesses both Lewis acid and Brønsted acid sites. [34] Sn-b zeoliteisa ne xcellent solid Lewis acid catalyst for the isomerizationo fg lucose into fructose. Romµn-Leshkov et al and Wolf et al reported that the isomerizationo fg lucose over Sn-b was catalyzed by the frameworkS ns ites through an intramolecular hydride shift reaction.…”