Ruthenium carbenes supported on mesoporous silicas as highly active and selective hybrid catalysts for olefin metathesis reactions under continuous flow
In the search for a highly active and selective heterogenized metathesis catalyst, we systematically varied the pore geometry and size of various silica-based mesoporous (i.e., MCM-41, MCM-48, and SBA-15) and microporous (ZSM-5 and MWW) versus macroporous materials (D11-10 and Aerosil 200), besides...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 12, 2013
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| In: |
Chemistry - a European journal
Year: 2013, Jahrgang: 19, Heft: 35, Pages: 11661-11671 |
| ISSN: | 1521-3765 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201203893
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| Verfasserangaben: | Miriam Bru, Richard Dehn, J. Henrique Teles, Stephan Deuerlein, Manuel Danz, Imke B. Müller, and Michael Limbach |
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| 245 | 1 | 0 | |a Ruthenium carbenes supported on mesoporous silicas as highly active and selective hybrid catalysts for olefin metathesis reactions under continuous flow |c Miriam Bru, Richard Dehn, J. Henrique Teles, Stephan Deuerlein, Manuel Danz, Imke B. Müller, and Michael Limbach |
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| 520 | |a In the search for a highly active and selective heterogenized metathesis catalyst, we systematically varied the pore geometry and size of various silica-based mesoporous (i.e., MCM-41, MCM-48, and SBA-15) and microporous (ZSM-5 and MWW) versus macroporous materials (D11-10 and Aerosil 200), besides other process parameters (temperature, dilution, and mean residence time). The activity and, especially, selectivity of such “linker-free” supports for ruthenium metathesis catalysts were evaluated in the cyclodimerization of cis-cyclooctene to form 1,9-cyclohexadecadiene, a valuable intermediate in the flavor and fragrance industry. The optimized material showed not only exceptionally high selectivity to the valuable product, but also turned out to be a truly heterogeneous catalyst with superior activity relative to the unsupported homogeneous complex. | ||
| 650 | 4 | |a cyclooligomerization | |
| 650 | 4 | |a macrocycles | |
| 650 | 4 | |a mesoporous materials | |
| 650 | 4 | |a metathesis | |
| 650 | 4 | |a ruthenium | |
| 650 | 4 | |a supported catalysts | |
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| 700 | 1 | |a Teles, J. Henrique |e VerfasserIn |4 aut | |
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