A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Reductive Amination of Ketones with Benzylamine Over Gold Supported on Different Oxides
Tekijät: Kolobova E., Mäki-Arvela P., Pestryakov A., Pakrieva E., Pascual L., Smeds A., Rahkila J., Sandberg T., Peltonen J., Murzin D.Y.
Kustantaja: Springer New York LLC
Julkaisuvuosi: 2019
Journal: Catalysis Letters
Tietokannassa oleva lehden nimi: Catalysis Letters
Vuosikerta: 149
Numero: 12
Aloitussivu: 3432
Lopetussivu: 3446
Sivujen määrä: 15
ISSN: 1011-372X
DOI: https://doi.org/10.1007/s10562-019-02917-1
Verkko-osoite: https://link.springer.com/article/10.1007/s10562-019-02917-1
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/42292449
Reductive amination of cyclohexanone with benzylamine was investigated at 100 °C under 30 bar hydrogen in toluene with five different gold catalysts prepared by deposition–precipitation method and supported on TiO2, La2O3/TiO2, CeO2/TiO2, La2O3 and CeO2. Size of metallic gold varied in the range of 2.6–3.6 nm. The best catalysts in reductive amination of cyclohexanone with benzylamine were 4 wt% Au/TiO2 and 4 wt% Au/CeO2/TiO2 giving 72% and 79% yield of the desired amine. The most acidic and basic catalysts were also unselective and exhibited low activity towards imine hydrogenation. The best catalyst 4 wt% Au/CeO2/TiO2 gave in reductive amination of propiophenone 56% selectivity to the corresponding amine at 20% conversion in 5 h.
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