Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock

ABSTRACT: The catalytic (Pd/Al(2)O(3) and Pd/C; mean Pd size 2.5–3.0 nm from (S)TEM analysis) synthesis of di-butylamine (DBA) and tri-butylamine (TBA) from mono-butylamine (MBA) and DBA, respectively, in continuous gas phase operation is demonstrated. Exclusive production of DBA (from MBA) has been...

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Autores principales: Hao, Yufen, Cárdenas-Lizana, Fernando, Keane, Mark A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089641/
https://www.ncbi.nlm.nih.gov/pubmed/32226263
http://dx.doi.org/10.1007/s10562-016-1902-7
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author Hao, Yufen
Cárdenas-Lizana, Fernando
Keane, Mark A.
author_facet Hao, Yufen
Cárdenas-Lizana, Fernando
Keane, Mark A.
author_sort Hao, Yufen
collection PubMed
description ABSTRACT: The catalytic (Pd/Al(2)O(3) and Pd/C; mean Pd size 2.5–3.0 nm from (S)TEM analysis) synthesis of di-butylamine (DBA) and tri-butylamine (TBA) from mono-butylamine (MBA) and DBA, respectively, in continuous gas phase operation is demonstrated. Exclusive production of DBA (from MBA) has been established over both catalysts where 453 ≤ T ≤ 523 K (∆E(a) = 79 kJ mol(−1)). Greater activity for Pd/C is associated with higher levels of surface acidity (from NH(3) chemisorption/TPD) and spillover hydrogen (from H(2) TPD). Reaction of DBA over both catalysts when configured in series delivered full selectivity to TBA. Our results establish a novel clean alternative route for the continuous production of higher (secondary and tertiary) amines. GRAPHICAL ABSTRACT: [Image: see text]
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spelling pubmed-70896412020-03-26 Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock Hao, Yufen Cárdenas-Lizana, Fernando Keane, Mark A. Catal Letters Article ABSTRACT: The catalytic (Pd/Al(2)O(3) and Pd/C; mean Pd size 2.5–3.0 nm from (S)TEM analysis) synthesis of di-butylamine (DBA) and tri-butylamine (TBA) from mono-butylamine (MBA) and DBA, respectively, in continuous gas phase operation is demonstrated. Exclusive production of DBA (from MBA) has been established over both catalysts where 453 ≤ T ≤ 523 K (∆E(a) = 79 kJ mol(−1)). Greater activity for Pd/C is associated with higher levels of surface acidity (from NH(3) chemisorption/TPD) and spillover hydrogen (from H(2) TPD). Reaction of DBA over both catalysts when configured in series delivered full selectivity to TBA. Our results establish a novel clean alternative route for the continuous production of higher (secondary and tertiary) amines. GRAPHICAL ABSTRACT: [Image: see text] Springer US 2017-02-14 2017 /pmc/articles/PMC7089641/ /pubmed/32226263 http://dx.doi.org/10.1007/s10562-016-1902-7 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Hao, Yufen
Cárdenas-Lizana, Fernando
Keane, Mark A.
Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title_full Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title_fullStr Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title_full_unstemmed Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title_short Palladium Promoted Production of Higher Amines from a Lower Amine Feedstock
title_sort palladium promoted production of higher amines from a lower amine feedstock
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089641/
https://www.ncbi.nlm.nih.gov/pubmed/32226263
http://dx.doi.org/10.1007/s10562-016-1902-7
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