The Role of Support Hydrophobicity in the Selective Hydrogenation of Enones and Unsaturated Sulfones over Cu/SiO2 Catalysts

The substitution of complex hydrides and Ni- and noble metal-based catalysts in the synthesis of pharma and fragrance products is a relevant topic in the green chemistry scenario. Here, we report that non-toxic, non-noble metal-based Cu/SiO2 catalysts are effective and very selective in the hydrogen...

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Bibliographic Details
Published in:Catalysts 2020-05, Vol.10 (5), p.515
Main Authors: Cavuoto, Denise, Zaccheria, Federica, Marelli, Marcello, Evangelisti, Claudio, Piccolo, Oreste, Ravasio, Nicoletta
Format: Article
Language:English
Subjects:
Acetone
Catalysts
Chemical reactions
Chemical synthesis
Contact angle
Copper
Cu catalysts
Esters
Hydrogenation
Hydrophobicity
Ketones
Nanoparticles
Nickel
Noble metals
Pharmaceuticals
selective hydrogenation
Silica
Silicon dioxide
Sulfones
unsaturated ketones
unsaturated sulfones
Wettability
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Summary:The substitution of complex hydrides and Ni- and noble metal-based catalysts in the synthesis of pharma and fragrance products is a relevant topic in the green chemistry scenario. Here, we report that non-toxic, non-noble metal-based Cu/SiO2 catalysts are effective and very selective in the hydrogenation of α,β-unsaturated ketones, esters and sulfones under very mild conditions. Vanillyl acetone can be obtained in quantitative yield in 1 h at 90 °C and 1 bar of H2. High dispersion of the metallic phase and support wettability play a significant role in determining catalytic performance.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal10050515