Recent advances in catalytic oxidation of 5-hydroxymethylfurfural

Innovative Protocols in the Catalytic Oxidation of 5‐Hydroxymethylfurfural

“… [1] Cellulose can be converted into an important bio‐sourced platform compound, 5‐hydroxymethylfurfural (HMF), [2–5] by successive reactions: hydrolysis of the β‐1,4 bonds of the anhydrous glucose unit [6] to form the corresponding hexose; isomerization of glucose in situ into the corresponding ketose; and the dehydration of fructose. The oxidation of HMF has been presented as an efficient way to valorize compounds from biomass [7,8] …”

“…The oxidation of HMF has been presented as an efficient way to valorize compounds from biomass. [7,8] Among the intermediates obtained by the selective oxidation, 2,5-diformylfuran (DFF), 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), and 5-formyl-2-furancarboxylic acid (FFCA) encompass a furan moiety and have widespread applications. For instance, DFF is used for the production of ligands, pesticide, antifungal agents, fluorescent materials, and new polymeric materials.…”

Recent Advances in Photocatalytic Oxidation of 5‐Hydroxymethylfurfural

“…[12] Therefore, much effort has been devoted to the selective oxidation of HMF using various kinds of catalyst systems such as chemical oxidation with metal based catalysts, enzymatic catalysis, and electrocatalytic synthesis. [13,14] Chemical oxidation reactions are typically performed at high temperature and high O 2 pressure. However, the catalytic systems based on cost-effective first row transition metal catalysts commonly performed not so promising as that based on precious metal catalysts.…”

“…However, the catalytic systems based on cost-effective first row transition metal catalysts commonly performed not so promising as that based on precious metal catalysts. [14] In comparison to chemical oxidation systems, enzyme catalytic transformation usually carried out under relatively mild conditions. Nevertheless, the high cost in genetic engineering to construct enzyme catalysts with high activity, and the stability as well as the recyclability of the enzyme are challenging issues to be addressed.…”

“…Nevertheless, the high cost in genetic engineering to construct enzyme catalysts with high activity, and the stability as well as the recyclability of the enzyme are challenging issues to be addressed. [14] Based on the aforementioned, it is necessary to develop environmentally friendly costeffective catalyst systems for HMF selective oxidation.…”