Abstract
A series of Keggin type tungsten-substituted molybdophosphoric acids (H3PMo12−n W n O40·XH2O) were synthesized and characterized by ICP-AES, FT-IR, TG-DSC, and XRD. The tungsten substitution extent significantly affected their catalytic activity in the oxidation of cyclopentene and the selectivity of the resultant products. The tungsten-substituted molybdophosphoric acids with tungsten substitution numbers in a range of 3–6.8 exhibited high catalytic activity in the oxidation of cyclopentene. After reaction for 8 h, the conversion of cyclopentene was up to 97%; the oxidation products mainly consisted of glutaraldehyde, cis-1,2-cyclopentanediol and trans-1,2-cyclopentanediol with the yields of ca. 23%, 27%, and 45%, respectively.
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Xue, J., Yin, H., Li, H. et al. Oxidation of cyclopentene catalyzed by tungsten-substituted molybdophosphoric acids. Korean J. Chem. Eng. 26, 654–659 (2009). https://doi.org/10.1007/s11814-009-0109-7
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DOI: https://doi.org/10.1007/s11814-009-0109-7