synthesis of 5‐hydroxymethylfurfural (HMF) from a variety of sugars (simple to complex) using phosphatedTiO2 as a catalyst. Fructose and glucose were selectively converted to HMF resulting in 98 % and 90 % yield, respectively, at 175 °C. Cellobiose and sucrose also gave rise to high HMF yields of 94 % and 98 %, respectively, at 180 °C. Other sugar variants such as starch (potato and rice) and cellulose
Efficient Solid Acid Catalyst Containing Lewis and Brønsted Acid Sites for the Production of Furfurals
作者:Michael G. Mazzotta、Dinesh Gupta、Basudeb Saha、Astam K. Patra、Asim Bhaumik、Mahdi M. Abu-Omar
DOI:10.1002/cssc.201402007
日期:2014.8
spectroscopy. The carbonaceous heterogeneous catalyst (Glu‐TsOH‐Ti) with a Brønsted‐to‐Lewis acid density ratio of 1.2 and more accessible acidsites was effective to produce 5‐hydroxymethylfurfural and furfural from biomass‐derived mono‐ and disaccharides and xylose in a biphasic solvent that comprised water and biorenewable methyltetrahydrofuran. The catalyst was recycled in four consecutive cycles with