Unification of Ru and carbon support in catalytic aqueous 1,6-hexanediol amination

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73630850" target="_blank" >RIV/61989592:15640/25:73630850 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/25:10258062
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2468823125002160?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468823125002160?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mcat.2025.115030" target="_blank" >10.1016/j.mcat.2025.115030</a>

Result language
angličtina
Original language name
Unification of Ru and carbon support in catalytic aqueous 1,6-hexanediol amination
Original language description
The aqueous-phase reductive amination of 1,6-hexanediol (HDO) to amines is reported in the presence of Ru supported over various carbon materials with efficient product selectivity even under mild conditions (463 K, 25 bar H2). Activated carbon with an optimal balance of amorphous and graphitic configurations proved to be an outstanding support for achieving the highest selectivity towards total amines. Furthermore, adding Ba(OH)2 in the Ru supported on different carbon materials notably improved the conversion of HDO and boosted the selectivity towards amines by around 1.3 times. This enhancement led to impressive yields, with hexamethylenediamine (HMDA) reaching up to 29%, azepane at 24%, and 6-amino-1-hexanol (AH) at 15% when using Rusupported on activated carbon. A detailed examination and control experiments demonstrated the significance of the synergistic relationship between graphitic and amorphous sites within carbon materials, resulting in enhanced selectivity towards amination. Increasing the alkyl chain length of mono alcohols consistently produced higher yields with longer carbon chains, thus suggesting the crucial role of alkyl chain adsorption on amorphous carbon material in the HDO amination process, with Ru acting as the pivotal active site.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
<a href="/en/project/EH22_008%2F0004587" target="_blank" >EH22_008/0004587: Technology Beyond Nanoscale</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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