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Title
Japanese:Efficient sulfoxidation with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate. 
English:Efficient sulfoxidation with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate. 
Author
Japanese: Taiyo Yamaura, Keigo Kamata, Kazuya Yamaguchi, Noritaka. Mizuno.  
English: Taiyo Yamaura, Keigo Kamata, Kazuya Yamaguchi, Noritaka. Mizuno.  
Language English 
Journal/Book name
Japanese:Catalysis Today 
English:Catalysis Today 
Volume, Number, Page Vol. 203        pp. 76-80
Published date 2013 
Publisher
Japanese:Elsevier B.V. 
English:Elsevier B.V. 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1016/j.cattod.2012.01.026
Abstract A divanadium-substituted phosphotungstate [ﾎｳ-PW10O38V2(ﾎｼ-OH)2]3- (I) could act as an efficient homogeneous catalyst for selective oxidn. of sulfides with 30% aq. H2O2. By using I at 0.01-0.1 mol%, various kinds of sulfides including aryl, alkyl, and vinyl ones could be converted into the corresponding sulfoxides in excellent yields with one equiv. of H2O2 with respect to sulfides. The neg. Hammett ﾏ�value (-0.83) for competitive oxidn. of p-substituted thioanisoles and the low XSO (XSO = (nucleophilic oxidn.)/(total oxidn.)) value (<0.01) for the I-catalyzed oxidn. of thianthrene 5-oxide (SSO) revealed that I produces a strong electrophilic oxidant. [on SciFinder(R)]

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