Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
OXYETHYLATED FLUORESCEINE—(THIA)CALIX[4]ARENE CONJUGATES: SYNTHESIS AND VISIBLE-LIGHT PHOTOREDOX CATALYSIS IN WATER–ORGANIC MEDIA
Form of presentationArticles in international journals and collections
Year of publication2023
Языканглийский
  • Daminova Amina Galeevna, author
  • Bibliographic description in the original language Burilov V., Fatykhova A., Mironova D., Sultanova E., Nugmanov R., Artemenko A., Volodina A., Daminova A., Evtugyn V., Solovieva S., Antipin I. Oxyethylated fluoresceine—(thia)calix[4]arene conjugates: synthesis and visible-light photoredox catalysis in water–organic media / V. Burilov, A. Fatykhova, D. Mironova, E. Sultanova, R. Nugmanov, A. Artemenko, A. Volodina, A. Daminova, V .Evtugyn, S. Solovieva, I. Antipin // Molecules. - 2023. - V. 28. - № 261. - P. 1-18.
    Annotation Fluorescent derivatives attract the attention of researchers for their use as sensors, photocatalysts and for the creation of functional materials. In order to create amphiphilic fluorescent derivatives of calixarenes, a fluorescein derivative containing oligoethylene glycol and propargyl groups was obtained. The resulting fluorescein derivative was introduced into three different (thia)calix[4]arene azide derivatives. For all synthesized compounds, the luminescence quantum yields have been established in different solvents. Using UV-visible spectroscopy, dynamic light scattering, as well as transmission and confocal microscopy, aggregation of macrocycles was studied. It was evaluated that calixarene derivatives with alkyl substituents form spherical aggregates, while symmetrical tetrafluorescein-containing thiacalix[4]arene forms extended worm-like aggregates. The macrocycle containing tetradecyl fragments was found to be the most efficient in photoredox ipso-oxidation of phenylboronic acid. In addition, it was shown that in a number of different electron donors (NEt3, DABCO and iPr2EtN), the photoredox ipso-oxidation proceeds best with triethylamine. It has been shown that a low molecular weight surfactant Triton-X100 can also improve the photocatalytic abilities of an oligoethylene glycol fluorescein derivative, thus showing the importance of a combination of micellar and photoredox catalysis.
    Keywords calixarene, thiacalixarene, fluorescein, luminescence, click chemistry, photoredox catalysis
    The name of the journal Molecules
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=310643&p_lang=2
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