- A new organo-ruthenium substituted tungstotellurate: Synthesis, structural characterization and catalytic properties
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Reaction of [RuC6H6Cl2]2 with TeO2 and Na2WO4·2H2O in aqueous solution (pH 4.7) yielded a novel organo-ruthenium supported tungstotellurate polyanion, [Te2W20O70(RuC6H6)2]8- (Ru-1), which is composed of two [RuC6H6]2+ units linked to a [Te2W20O70]12- fragment through Ru-O(W) bonds resulting in an assembly with idealized C2h symmetry. Furthermore, the polyanion Ru-1 was anchored on 3-aminopropyltriethoxysilane (apts)-modified SBA-15 to prepare new catalysts (SBA-15-apts-Ru-1) containing different amounts of Ru-1, which were characterized using powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2-adsorption measurement and Fourier transform infrared reflectance (FT-IR) spectroscopy. Finally, the catalytic activity of SBA-15-apts-Ru-1 was evaluated for the aerobic oxidation of n-tetradecane using air as the oxidant in the absence of any additives or solvents. In addition, the optimum catalytic reaction conditions were also determined.
- Zheng, Da-Ming,Wang, Rui-Qiang,Du, Yu,Hou, Guang-Feng,Wu, Li-Xin,Bi, Li-Hua
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p. 8829 - 8836
(2016/10/11)
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- Oxidation of alkylphenylacetylenes and dialkylacetylenes on palladium catalysts in DMSO
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Alkylphenyl-and dialkylacetylenes are oxidized by the DMSO-PdCl2 or DMSO-Pd/C system to give the corresponding 1,2-diketones. Oxidation of these compounds, unlike that of diarylacetylenes, is less selective and is accompanied by the partial cle
- Yusubov,Filimonov,Chi, Ki-Whan
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p. 649 - 653
(2007/10/03)
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