Coupled condensation—hydrogenation processing of ethyl methyl ketone to 5-methylheptan-3-one on Pd/C catalyst

The features of the coupled aldol condensation—hydrogenation processing of ethyl methyl ketone on a Pd/activated carbon catalyst were studied. The phase and chemical composition of activated carbon, as well as the carbon based catalyst, were studied using powder X-ray diffraction and electron micros...

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Bibliographic Details
Published in:Russian chemical bulletin 2024-03, Vol.73 (3), p.488-496
Main Authors: Lebedev, I. V., Martsinkevich, E. M., Iskhakova, L. D., Milovich, F. O., Cheshkov, D. A., Flid, V. R., Bruk, L. G.
Format: Article
Language:English
Subjects:
Activated carbon
Aldehydes
Catalysts
Chemical composition
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Condensates
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Hydrogenation
Inorganic Chemistry
Ketones
Organic Chemistry
Palladium
X ray powder diffraction
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Summary:The features of the coupled aldol condensation—hydrogenation processing of ethyl methyl ketone on a Pd/activated carbon catalyst were studied. The phase and chemical composition of activated carbon, as well as the carbon based catalyst, were studied using powder X-ray diffraction and electron microscopy. We established the influence of the reaction temperature, palladium mass content, contact time, and H 2 /EtC(O)Me molar ratio on the main parameters of the process, namely, on the conversion of the starting EtC(O)Me and the selectivity of the formation of 5-methylheptan-3-one and 3-methylheptane. The optimal process conditions were selected (0.3 wt.% of palladium, 300 °C, contact time 17 s, a 1.25 H 2 /EtC(O)Me molar ratio), allowing to achieve a 96% total selectivity for the target products.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-024-4157-2