PURPOSE: To obtain an oxidized compound of 5-hydroxymethylfurfural as an intermediate of surface active agents, plastics and resins simply and advantageously without the formation of by-products by oxidizing 5- hydroxymethylfurfural using oxygen in an aqueous medium in the presence of a specific catalyst.
CONSTITUTION: Oxidation of 5-hydroxymethylfurfural using oxygen in an aqueous medium, preferably in the presence of a solubilizing agent such as triethylene glycol dimethyl ether, in the presence of a catalyst containing at least one platinum group metal, at a temperature ranging from 30°C to the boiling point of the aqueous medium, especially from 60 to 90°C under the total pressure of 0.5-100 bar gives the desired product. A preferable platinum group metal employed as the catalyst is one containing palladium and/or platinum and a preferable support is an activated carbon. Usually it is suitable to employ a commercially available catalyst containing 5-10 wt.% of platinum on an activated carbon.
MATSUTOHIASU UIISUNAA
MERUTEN SHIYURINGUMAN
KUNUUTO EMU RATSUPU
