Feng, Junfeng; Fan, Teng; Ma, Changyue; Xu, Yangyang; Jiang, Jianchun; Pan, Hui published the artcile< Collaborative Conversion of Biomass Carbohydrates into Valuable Chemicals: Catalytic Strategy and Mechanism Research>, Electric Literature of 112-63-0, the main research area is biomass carbohydrate valuable chem catalytic strategy mechanism; collaborative conversion; levulinates; lignocellulose; zeolite.
Levulinate is one of the high added-value biomass-derived chems. that is primarily produced from hexoses in cellulose and hemicellulose. Producing levulinate from pentoses in hemicellulose that is extensively distributed in biomass is still highly challenging. In this study, biomass materials and carbohydrates (including cellulose, xylan, glucose, fructose, and xylose) were collaboratively converted into levulinates efficiently over various zeolites with ethanol/dimethoxymethane as cosolvents. The key process for converting pentoses into levulinates is the synthesis of intermediates (furfural) into alkoxy Me furfural via electrophilic substitution or their conversion into furfuryl alc. via in situ hydrogenation. The substitution was achieved by the synergic effect between bifunctional catalysts and cosolvents, which promotes conversion of furfural into alkoxy Me furfural via the electrophilic addition of alkoxy Me radicals. Hydrogenation of furfural into furfuryl alc. was impelled by the cooperative process between in situ generated H-donor from alc. solvents and zeolite catalysts. Moreover, a favorable yield of 21.05 mol % of levulinates was achieved by simultaneous and collaborative conversion of cellulose and hemicellulose with the one-pot process using ethanol/dimethoxymethane as a cosolvent and the zeolite with B and L acid sites as a catalyst.
Journal of Agricultural and Food Chemistry published new progress about Bagasse. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics