| Autor: |
Ivan Lentin, Ilia Korniltsev, Alexander Gorbunov, Dmitry Cheshkov, Stanislav Bezzubov, Vladimir Kovalev, Ivan Vatsouro |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Molbank, Vol 2023, Iss 4, p M1748 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1422-8599 |
| DOI: |
10.3390/M1748 |
| Popis: |
Copper(I)-catalyzed azide-alkyne cycloaddition was employed to construct biscalixarene assemblies from the calix[4]arene dipropargyl ethers and 4,4′-bis-azidomethylated azobenzene or stilbene. Three bis(calixarenes) having the calix[4]arene cores linked to each other by pairs of (E)-azobenzene/stilbene units through four triazole groups were obtained as confirmed by NMR, HRMS and X-ray diffraction data. Nevertheless, the formation of larger macrocycles and polymeric/oligomeric products was found to be the major competing process that seriously limited the applicability of the one-step macrocyclization approach for the construction of photoresponsive biscalixarene assemblies linked by pairs of azobenzene/stilbene units. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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