Zhang, Zhi published the artcilePreparation and characterisation of ordered mesoporous SO2-4/Al2O3 and its catalytic activity in the conversion of furfuryl alcohol to ethyl levulinate, Application In Synthesis of 539-88-8, the main research area is mesoporous SO24 Al2O3 catalytic furfuryl alc ethyl levulinate.
A series of ordered mesoporous SO42-/Al2O3 (OMSA) solid super acid catalysts were prepared by evaporation-induced self-assembly (EISA) method, followed by sulfonation at different calcination temperatures (400°C-900 °C). The results of transmission electron microscopy (TEM) and small-angle X-ray diffraction (XRD) indicated that all of the OMSAs possessed ordered mesoporous structures. The N2-Brunauer-Emmett-Teller (N2-BET) results showed that the sp. surface area of OMSAs could reach up to 160-380 m2/g, and the average pore diameters fall into the range between 8.6 and 9.8 nm. The temperature-programmed desorption of ammonia (NH3-TPD) characterization proofed that the OMSAs contained super acid, and ammonia desorption by the super acid in the OMSA calcined at 600 °C reached 25.9 cm3/g STP. The pyridine adsorption IR (Py-IR) indicated that all of the OMSAs consisted mainly of Lewis acids. The OMSA was used to catalyze furfuryl alc. in the synthesis of Et levulinate (EL). The maximum yield (80.6%) was obtained in the reaction conducted at 200 °C for 3 h. The reusability of the catalyst was proofed after four times of reuse as its activity was maintained with a yield of 71.2%.
Journal of Solid State Chemistry published new progress about Ethanolysis. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Application In Synthesis of 539-88-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics