Song, Daiyu published the artcileDesign of periodic mesoporous sulfonic acid and titanium bi-functionalized alkyl-bridged organosilica hybrid catalysts for efficient synthesis of ethyl levulinate, Related Products of esters-buliding-blocks, the main research area is propylsulfonic arenesulfonic acid titanium silica hybrid catalyst ethyl levulinate.
A series of periodic mesoporous propylsulfonic/arenesulfonic acid and titanium bi-functionalized ethyl/phenyl-bridged organosilica hybrid catalysts, Pr/ArSO3H-Si(Et/Ph)Si-Ti, with controllable Ti loadings are prepared by a nonionic surfactant-templated sol-gel co-condensation route under acidic media and carefully adjusted silicon-to-titanium molar ratios in the initial preparation systems. As-prepared hybrid catalysts with both Bronsted and Lewis acid natures, excellent porosity properties and surface hydrophobicity exhibit excellent catalytic activity in the synthesis of Et levulinate, a promising fuel blend, from the esterification of levulinic acid with ethanol, and the esterification activity is closely related to Ti loading or SO3H group-to-Ti molar ratio as well as the structures of the incorporated sulfonic acid groups and bridging organic units. Addnl., the catalysts can be reused for three times without any activity loss, attributing to covalent bonding the organosulfonic acid groups and Ti(IV) species with the silica/carbon framework.
Microporous and Mesoporous Materials published new progress about Acidity. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Related Products of esters-buliding-blocks.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics