Faculté des sciences
Texte intégral

Highly selective C = C bond hydrogenation in α,β-unsaturated ketones catalyzed by hectorite-supported ruthenium nanoparticles

Khan, Farooq-Ahmad ; Vallat, Armelle ; Süss-Fink, Georg

In: Journal of Molecular Catalysis A: Chemical, 2010, vol. 355, p. 168–173

Metallic ruthenium nanoparticles intercalated in hectorite (particle size ∼7 nm) were found to catalyze the specific hydrogenation (conversion 100%, selectivity > 99.9%) of the carbon–carbon double bond in α,β-unsaturated ketones such as 3-buten-2-one, 3-penten-2-one, 4-methyl-3-penten-2-one. The catalytic turnovers range from 765 to 91,800, the reaction conditions being very mild... Mehr

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    Titel
    • Highly selective C = C bond hydrogenation in α,β-unsaturated ketones catalyzed by hectorite-supported ruthenium nanoparticles
    Autor
    • Khan, Farooq-Ahmad. Institut de Chimie, Université de Neuchâtel, Switzerland
    • Vallat, Armelle. Service Analytique Facultaire, Université de Neuchâtel, Switzerland
    • Süss-Fink, Georg. Institut de Chimie, Université de Neuchâtel, Switzerland
    Dokumententyp
    • Postprint
    Erscheinungsjahr
    • 2010
    OAI-PMH-ID
    • oai:doc.rero.ch:20120607105347-DX
    Einreichung-ID
    • 20120607105347-DX
    Summary
    Metallic ruthenium nanoparticles intercalated in hectorite (particle size ∼7 nm) were found to catalyze the specific hydrogenation (conversion 100%, selectivity > 99.9%) of the carbon–carbon double bond in α,β-unsaturated ketones such as 3-buten-2-one, 3-penten-2-one, 4-methyl-3-penten-2-one. The catalytic turnovers range from 765 to 91,800, the reaction conditions being very mild (temperature 35 °C and constant hydrogen pressure 1–10 bar). After a catalytic run, the catalyst can be recycled and reused without loss of activity and selectivity.