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- W2364986133 abstract "A series of heteropoly compounds with Dawson structrue were synthesized and were used to catalyze the selective oxidation of ethylbenzene with hydrogen peroxide. The reaction parameters were investigated in deteil. The results indicated that the catalysts had excellent catalytic activity for the reaction. The optimal conditions of the reaction are that ethylbenzene is 2.5 mmol, catalyst is 0.02 mmol, solvent is 10 mL and 30% H 2O 2 is 2.5 mmol. It should be emphasized that the possible role of the peracid appears to be somewhat ambiguous. Although acetic acid is the preferred solvent indicating that peracetic acid may be the preferred primary oxidant, but when formic acid was used as solvent, where performic acid is easily formed, there was practically no reaction. In solvents such as acetonitrile and sulfolane there were significant conversions. The fact that the heteropoly acids with Dawson structure without vanadium do not significantly decompose hydrogen peroxide or oxidize ethylbenzene, clearly indicates that the reaction must proceed by homolytic cleavage at the vanadium atom. So V is considered to be the active component for the reaction. The intermediate material of the reaction is the P Mo V peroxo identified by means of UV Vis spectra and ESR." @default.
- W2364986133 created "2016-06-24" @default.
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- W2364986133 date "1997-01-01" @default.
- W2364986133 modified "2023-09-25" @default.
- W2364986133 title "Selective Oxidation of Ethylbenzene over Molybdovanadophophoric Compounds with Dawson Structure" @default.
- W2364986133 hasPublicationYear "1997" @default.
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