Synthesis of fructone over dealuminated USY supported heteropoly acid and its salt catalysts was written by Zhang, Fumin;Yuan, Chaoshu;Wang, Jun;Kong, Yan;Zhu, Haiyang;Wang, Chunyan. And the article was included in Journal of Molecular Catalysis A: Chemical in 2006.Computed Properties of C8H14O4 The following contents are mentioned in the article:
12-Phosphotungstic acid (PW) and cesium salt of PW supported on dealuminated ultra-stable Y zeolite (DUSY) with various loadings were prepared by impregnation method, and their physicochem. properties were characterized by X-ray powder diffraction (XRD), N2 adsorption, solid state 31P and 29Si MAS NMR, Hammett indicator and SEM techniques. Their catalytic performances were evaluated in the liquid-phase acetalization of Et acetoacetate with ethylene glycol to fructone. The catalytic stability was tested using water treatment, in which the concentration of heteropoly compound was measured by UV-visual spectrophotometer. A high catalytic activity was found over the supported heteropoly compound catalysts. However, for the supported PW catalysts, a severe leaching of heteropoly anions into water was observed, leading to their poor reusability. By contrast, the Cs salt of PW catalyst supported on DUSY exhibited very high catalytic activity with high water-tolerance and reusability. The conversion of Et acetoacetate of 98.7% with the selectivity of fructone above 97% could be obtained over the DUSY supported sample containing 30% of Cs2.5H0.5PW12O40 by weight at the optimal reaction conditions, and a considerable catalytic activity still could be achieved after five times of reaction cycle. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Computed Properties of C8H14O4).
Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Computed Properties of C8H14O4
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem