Ganji, Parameswaram published the artcileConversion of levulinic acid to ethyl levulinate using tin modified silicotungstic acid supported on Ta2O5, Computed Properties of 539-88-8, the main research area is levulinic acid esterification tin modified silicotungstic acid catalyst property.
Tin modified silicotungstic acid (STA) deposited on Ta2O5 was explored as suitable catalyst for the conversion of levulinic acid to Et levulinate. The microwave synthesized catalysts of varying amounts of STA were characterized by N2 adsorption, powder XRD, FT-IR, FE-SEM, XPS, pyridine-FT-IR, TGA-DTA and NH3-TPD. Among the synthesized catalysts, 50% Sn2STA/Ta2O5 catalyst exhibited excellent catalytic activity for the esterification of levulinic acid providing 78% of Et levulinate yield and stable recyclability up to three cycles. The rate of esterification was 6.6 × 10-3 mol/g/min, which is significantly higher compared to reported values in the open literature. Mechanistic investigations revealed that the high catalytic activity was influenced by the presence of appropriate Bronsted acid sites, surface area and porosity.
Catalysis Communications published new progress about Bronsted acidity. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Computed Properties of 539-88-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics