In 2008,Taarning, Esben; Madsen, Anders Theilgaard; Marchetti, Jorge Mario; Egeblad, Kresten; Christensen, Claus Hviid published 《Oxidation of glycerol and propanediols in methanol over heterogeneous gold catalysts》.Green Chemistry published the findings.Electric Literature of C4H8O3 The information in the text is summarized as follows:
Aerobic oxidation of glycerol over metal oxide supported gold nanoparticles in methanol results in the formation of di-Me mesoxalate in selectivities up to 89% at full conversion. The oxidative esterification takes place in methanol, acting both as solvent and reactant, and in the presence of base. Thus, it constitutes a direct transformation of the glycerol byproduct phase from biodiesel production or from glycerol obtained e.g. by fermentation Au/TiO2 and Au/Fe2O3 was found to have similar catalytic activity, whereas Au/C was inactive. 1,2-Propanediol was oxidized to Me lactate with a selectivity of 72% at full conversion, while 1,3-propanediol yielded Me 3-hydroxypropionate with 90% selectivity at 94% conversion. Me 3-hydroxypropionate can be easily converted into Me acrylate, which is then a green polymer building block.Methyl 3-hydroxypropanoate(cas: 6149-41-3Electric Literature of C4H8O3) was used in this study.
Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Electric Literature of C4H8O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics