Catalytic Degradation of Aliphatic Ethers using the Lewis Superacidic Bis (perfluoropinacolato) silane
Abstract: The exceptional catalytic activity of a neutral Si (IV) Lewis superacid was highlighted on the degradation of oligo‐ and polyethers via ring closing metathesis. Model reaction experiments with diglyme and 1,5‐dimethoxypentane outlined a significantly increased reactivity surpassing comparable Lewis acid catalyst presented in the literature. The high observed activity was explained by the kinetic effect of the bulky perfluorinated substituents, blocking a second coordination site that is responsible for catalyst deactivation by substrate chelation. Further experiments with aliphatic oligoethers outlined a gradual activity loss of the catalyst due to mechanistic disparities favoring side‐reactions when more than one internal product unit is present. The extraordinary affinity for the cleavage of etheric C−O bonds was ultimately demonstrated by the reaction with diethylether, producing a pentavalent silicate species that was fully characterized including SC‐XRD analysis.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Catalytic Degradation of Aliphatic Ethers using the Lewis Superacidic Bis (perfluoropinacolato) silane ; day:02 ; month:05 ; year:2023 ; extent:6
ChemCatChem ; (02.05.2023) (gesamt 6)
- Creator
- DOI
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10.1002/cctc.202300281
- URN
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urn:nbn:de:101:1-2023050315060082899752
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:52 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Tschernuth, Florian
- Bichlmaier, Lukas
- Inoue, Shigeyoshi
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Catalytic asymmetric cationic shifts of aliphatic hydrocarbons
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