Engel, Rebecca V. ; Niemeier, Johannes ; Fink, Anja ; Rose, Marcus (2023)
Unravelling the Mechanism of the Ru/C‐Catalysed Isohexide and Ether Isomerization by Hydrogen Isotope Exchange.
In: Advanced Synthesis & Catalysis, 2018, 360 (12)
doi: 10.26083/tuprints-00024536
Artikel, Zweitveröffentlichung, Postprint
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
In this article we show that the catalytic isomerization of isohexide sugar alcohols as well as their respective ethers can occur by a hydride-based mechanism rather than a dehydrogenation/re-hydrogenation. C−H bonds in α-position to hydroxy and ether groups are activated using Ru/C as solid catalyst at temperatures as high as 160 °C and above. Hydrogen isotope exchange experiments proved that a full hydride exchange and isomerization is possible for isohexides but unexpectedly also for their methyl ethers. This is of great importance as it proves the co-existence of the both mechanisms for reactions that were so far assumed to occur solely by a dehydrogenation/re-hydrogenation. Hence, this co-existence should be taken into account for kinetic investigations of such reaction systems especially in the conversion of biomass-based chemicals under hydrogenation conditions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Engel, Rebecca V. ; Niemeier, Johannes ; Fink, Anja ; Rose, Marcus |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Unravelling the Mechanism of the Ru/C‐Catalysed Isohexide and Ether Isomerization by Hydrogen Isotope Exchange |
| Sprache: | Englisch |
| Publikationsjahr: | 13 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2018 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Synthesis & Catalysis |
| Jahrgang/Volume einer Zeitschrift: | 360 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.26083/tuprints-00024536 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/24536 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | In this article we show that the catalytic isomerization of isohexide sugar alcohols as well as their respective ethers can occur by a hydride-based mechanism rather than a dehydrogenation/re-hydrogenation. C−H bonds in α-position to hydroxy and ether groups are activated using Ru/C as solid catalyst at temperatures as high as 160 °C and above. Hydrogen isotope exchange experiments proved that a full hydride exchange and isomerization is possible for isohexides but unexpectedly also for their methyl ethers. This is of great importance as it proves the co-existence of the both mechanisms for reactions that were so far assumed to occur solely by a dehydrogenation/re-hydrogenation. Hence, this co-existence should be taken into account for kinetic investigations of such reaction systems especially in the conversion of biomass-based chemicals under hydrogenation conditions. |
| Status: | Postprint |
| URN: | urn:nbn:de:tuda-tuprints-245363 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II |
| Hinterlegungsdatum: | 13 Nov 2023 15:43 |
| Letzte Änderung: | 06 Dez 2023 09:56 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Unravelling the Mechanism of the Ru/C‐Catalysed Isohexide and Ether Isomerization by Hydrogen Isotope Exchange. (deposited 13 Nov 2023 15:43) [Gegenwärtig angezeigt]
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