Chang, Ken-Lin;Muega, Sherwin C.;Ofrasio, Bjorn Ivan G.;Chen, Wei-Hsin;Barte, Emely G.;Abarca, Ralf Ruffel M.;de Luna, Mark Daniel G. published 《Synthesis of 5-hydroxymethylfurfural from glucose, fructose, cellulose and agricultural wastes over sulfur-doped peanut shell catalysts in ionic liquid》 in 2022. The article was appeared in 《Chemosphere》. They have made some progress in their research.SDS of cas: 65039-09-0 The article mentions the following:
In this study, waste peanut shells were sulfur-impregnated and used as acid catalysts in the presence of an ionic liquid for the conversion of fructose, glucose, and cellulose into 5-hydroxymethylfurfural, a useful chem. intermediate for biofuel production Effects of sulfur-doping duration (1 h and 5 h), solvent type and proportion, reaction temperature (130°C, 140°C, and 150°C), time (30-240 min), catalyst-to-substrate ratio (1-2.5 m/m), and agricultural residue (peanut shell, Canada wheat straw, water hyacinth, stalk, and reed) on HMF yields were investigated. Monophasic and biphasic ionic liquids such as [amim]Cl, [bmim]HSO4, and [emim]Cl were employed in combination with choline chloride and DMSO to improve HMF yields. Results show that peanut shells subjected to prolonged sulfur impregnation produced higher HMF yields. At 130°C and 2 h, HMF yields from fructose and glucose reached 94.6% and 55.1%, resp. Higher reaction temperatures improved HMF yields and accelerated conversion rates for the sugar substrates. Moreover, HMF production from waste biomass namely, peanut shells, peanut stalk, Canadian wheat straw, reed, and water hyacinth were examined in sep. one-pot catalytic reactions. Overall, the study showed the effectiveness of sulfur-doped peanut shells as solid acid catalysts for the synthesis of HMF from various sources and the results may be used in designing large-scale production of furanic biofuel precursors from agricultural wastes. The experimental procedure involved many compounds, such as 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) .
1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a solvent as well as catalyst for the depolymerization of oak wood lignin; a solvent in the hydrolysis of hemicellulose (xylan) to xylose using Brønsted acid catalysts.SDS of cas: 65039-09-0
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem