Yang, Fu published the artcileCatalytic Upgrading of Renewable Levulinic Acid to Levulinate Esters Using Perchloric Acid Decorated Nanoporous Silica Gels, COA of Formula: C7H12O3, the main research area is perchloric acid decorated silica gel catalyst levulinate ester synthesis.
Catalytic upgrading of renewable biomass resource toward useful chems. is interesting but challenged, in this paper, several inorganic acids were examined for the catalytic esterification of levulinic acid with alc., and then ulteriorly loaded on the applicable supports to obtain the heterogeneous catalysts. Among them, HClO4/SiO2 nanoporous solid-acid catalyst exhibits the highest catalytic activity for the synthesis of Et levulinate. The resulting HClO4/SiO2 catalyst was characterized by FT-IR, Energy Dispersive X-ray (EDX)-mapping, X-ray Diffraction (XRD), NH3-Temperature-Programmed-Desorption (TPD), and N2 desorption. Various reaction factors including loading of HClO4, catalyst dosage, reaction time and temperature were checked and optimized. As expected, the targeted catalyst affords 99% yield of Et levulinate and a durable activity even with five runs. Finally, esterification of levulinic acid with various alcs. over the HClO4/SiO2 was further expanded based on the optimal reaction condition.
ChemistrySelect published new progress about Esterification. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, COA of Formula: C7H12O3.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics