PROCESS FOR THE SYNTHESIS OF 2,5-DI (HYDROXYMETHYL) FURANE AND 2,5-DI (HYDROXYMETHYL) TETRAHYDROFURAN BY SELECTIVE HYDROGENATION OF FURANE-2,5-DIALDEHYDE

摘要

The present invention relates to a process for the selective hydrogenation of furan-2,5-dialdehyde (DFF) to 2,5-di (hydroxymethyl) furan (DHMF) and 2,5-di (hydroxymethyl) tetrahydrofuran (DHMTHF). Compared to the prior art which uses C6 sugars or 5-hydroxymethyl furaldehyde (5-HMF) as starting raw materials, this process can be carried out at low temperatures (below 120 ° C, preferably 80 ° C). C), while consuming a small amount of catalyst relative to the initial reagent (in particular 5% of the months, preferably less than 2% relative to the weight of the reagent). The heterogeneous catalyst used can also be recycled from one reaction to another. Finally, the choice of experimental conditions allows the selective formation of DHMF or DHMTHF.