A flexible nonporous heterogeneous catalyst for size-selective oxidation through a bottom-up approach
| Autor: | Mizuno, Noritaka, Uchida, Sayaka, Kamata, Keigo, Ishimoto, Ryo, Nojima, Susumu, Yonehara, Koji, Sumida, Yasutaka |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Chemistry
polyoxometalate prepn heterogeneous catalyst oxidn olefin sulfide silane Water General Medicine Hydrogen Peroxide General Chemistry Heterogeneous catalysis olefin peroxidn catalyzed Keggin type lacunary silicodecatungstate Catalysis tungstosilicate prepn heterogeneous catalyst oxidn olefin sulfide silane Chemical engineering Size selectivity Organic chemistry Size selective flexible nonporous silicotungstate heterogeneous catalyst size selective oxidn Porous medium Oxidation-Reduction |
| Zdroj: | Angewandte Chemie (International ed. in English). 49(No. 51):9972-6 |
| ISSN: | 1521-3773 |
| Popis: | The nonporous ([(Bu)4N]4[ﾎｳ-SiW10O34(H2O)2]ﾂｷH2O, 1.H2O) synthesized through a bottom-up approach sorbs EtOAc, which is highly mobile in the solid bulk of the compd., probably contributing to the easy co-sorption of olefins and H2O2. 1 Heterogeneously catalyzes size-selective oxidn. (small olefins are much more preferentially epoxidized than large olefins) of various org. substances including olefins, sulfides, and silanes with aq. H2O2 in EtOAc. 1 Can easily be sepd. by filtration and reused several times with retention of its high catalytic activity and is the 1st example for the heterogeneously catalyzed size-selective liq.-phase oxidn. with H2O2 by a POM-based catalyst. [on SciFinder(R)] |
| Databáze: | OpenAIRE |
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