Academic Journal
Towards a Real Knotaxane
| العنوان: | Towards a Real Knotaxane |
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| المؤلفون: | Duden, Torben, Lüning, Ulrich |
| سنة النشر: | 2020 |
| المجموعة: | Christian-Albrechts-Universität zu Kiel: MACAU |
| مصطلحات موضوعية: | article, ScholarlyArticle, ddc:540, Published Version, mechanically interlocked molecules, knot, rotaxane, macrocycle, click reaction, switching, shuttle |
| الوصف: | Two classes of mechanically interlocked molecules, [3]rotaxanes and knotted [1]rotaxanes, were the subject of this investigation. The necessary building blocks, alkyne-terminated axles containing two ammonium ions and azide-terminated stoppers, and azide-containing substituted macrocycles, have been synthesized and characterized. Different [3]rotaxanes were synthesized by copper-catalyzed “click” reactions between the azide stoppers and [3]pseudorotaxanes formed from the dialkyne axles and crown ethers (DB24C8). Methylation of the triazoles formed by the “click” reaction introduced a second binding site, and switching via deprotonation/protonation was investigated. In preliminary tests for the synthesis of a knotted [1]rotaxane, pseudorotaxanes were formed from azide-containing substituted macrocycles and dialkyne substituted diammonium axles, and copper-catalyzed “click” reactions were carried out. Mass spectral analyses showed successful double “click” reactions between two modified macrocycles and one axle. Whether a knotted [1]rotaxane was formed could not be determined. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | Chemistry -- 2624-8549; https://doi.org/10.3390/chemistry2020020; https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00325-4; https://macau.uni-kiel.de/receive/macau_mods_00002738; https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00003870/chemistry-02-00020-v2.pdf |
| DOI: | 10.3390/chemistry2020020 |
| الاتاحة: | https://doi.org/10.3390/chemistry2020020 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2022-00325-4 https://macau.uni-kiel.de/receive/macau_mods_00002738 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00003870/chemistry-02-00020-v2.pdf |
| Rights: | https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CA649590 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/chemistry2020020 |
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