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Title
Japanese:Selective Oxidation with Aqueous Hydrogen Peroxide by [PO4{WO(O2)2}4]3- Supported on Zinc-Modified Tin Dioxide. 
English:Selective Oxidation with Aqueous Hydrogen Peroxide by [PO4{WO(O2)2}4]3- Supported on Zinc-Modified Tin Dioxide. 
Author
Japanese: Susumu Nojima, Keigo Kamata, Kosuke Suzuki, Kazuya Yamaguchi, Noritaka. Mizuno.  
English: Susumu Nojima, Keigo Kamata, Kosuke Suzuki, Kazuya Yamaguchi, Noritaka. Mizuno.  
Language English 
Journal/Book name
Japanese:ChemCatChem 
English:ChemCatChem 
Volume, Number, Page Vol. 7    No. 7    pp. 1097-1104
Published date 2015 
Publisher
Japanese:Wiley-VCH Verlag GmbH & Co. KGaA 
English:Wiley-VCH Verlag GmbH & Co. KGaA 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1002/cctc.201402975
Abstract The supported phosphorus-contg. tetranuclear peroxotungstate ([PO4{WO(O2)2}4]3-, denoted by PW4) catalysts by using zinc-modified SnO2 supports with different zinc contents [PW4-Zn(x)/SnO2, in which x denotes the zinc content (wt%)] were prepd. The supported catalysts, in particular PW4-Zn(0.8)/SnO2, could act as efficient and reusable heterogeneous catalysts for selective oxidn. with aq. H2O2 as the terminal oxidant. The catalytic performance of PW4-Zn(0.8)/SnO2 was much superior to those of the corresponding homogeneous analog THA3PW4 (THA = tetra-n-hexylammonium) and the previously reported tungstate-based heterogeneous catalysts such as our W-Zn/SnO2. In the presence of PW4-Zn(0.8)/SnO2, various types of org. substrates such as alkenes, amines, silanes, and sulfides could be converted into the corresponding oxygenated products in high to excellent yields by using near-stoichiometric amts. of H2O2 with respect to the substrates (typically 1.2 equiv.). The PW4 species interacting with highly dispersed Zn2+ species on SnO2 likely plays an important role in the present oxidn. [on SciFinder(R)]

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