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Author |
Coeck, R.; Claes, N.; Cuypers, T.; Bals, S.; De Vos, D.E. |
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Title |
The sustainable and catalytic synthesis ofN,N-alkylated fatty amines from fatty acids and esters |
Type |
A1 Journal Article |
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Year  |
2025 |
Publication |
Green Chemistry |
Abbreviated Journal |
Green Chem. |
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Volume |
27 |
Issue |
5 |
Pages |
1410-1422 |
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Keywords |
A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ; |
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Abstract |
The reductive amination of fatty acids (FAs) and fatty acid methyl esters (FAMEs) has been identified as a green and effective method to produce<italic>N</italic>,<italic>N</italic>-dimethylalkylamines (ADMAs). With current technology, this reaction requires at least two reaction steps. Here, we report a heterogeneous catalytic system for the one-pot synthesis of ADMAs from FA(ME)s, utilizing solely H<sub>2</sub>and methylamines (<italic>i.e.</italic>di- and trimethylamine). The reaction requires two recyclable catalysts:<italic>ortho</italic>-Nb<sub>2</sub>O<sub>5</sub>for the amidation of FA(ME)s and PtVO<sub><italic>x</italic></sub>/SiO<sub>2</sub>for the hydrogenation of the<italic>in situ</italic>generated fatty amide to ADMAs. The developed system has a wide range of applicability: it is able to convert all natural FAs to ADMAs (yields up to 90%) and also other tertiary amines were synthesized. Aside from the development of a sustainable and industrially applicable process (<italic>e.g.</italic>utilizing benign solvents or performing solventless reactions), a kinetic model was developed that describes the reaction rate's relationship with key process parameters such as the H<sub>2</sub>pressure and water content. By tuning the reaction conditions, different ratios of primary, secondary and tertiary fatty amines can be obtained. |
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Publication Date |
2025-01-03 |
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ISSN |
1463-9262 |
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Impact Factor |
9.8 |
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Open Access |
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Notes |
This manuscript was made possible thanks to the research funding from VLAIO (Agentschap Innoveren & Ondernemen). R. C. thanks Paul Van der Aerschot and Sam Van Minnebruggen for technical support and CO chemisorption experiments respectively. |
Approved |
Most recent IF: 9.8; 2025 IF: 9.125 |
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Call Number |
EMAT @ emat @ |
Serial |
9356 |
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