Synthesis of Dansyl-Substituted Cryptands Containing TriazaВcycloalkane Moieties and their Evaluation as Fluorescent Chemosensorsстатья
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Web of Science ,
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Дата последнего поиска статьи во внешних источниках: 9 января 2018 г.
Авторы:
Chernichenko N.M. ,
Shevchuk V.N. ,
Averin A.D. ,
Maloshitskaya O.A. ,
Beletskaya I.P.
Журнал:
Synlett
Том:
28
Год издания:
2017
Издательство:
Georg Thieme Verlag
Местоположение издательства:
Germany
Первая страница:
2800
Последняя страница:
2806
DOI:
10.1055/s-0036-1590883
Аннотация:
A method for the synthesis of a new family of cryptands containing 1,4,7-triazacyclononane and 1,5,9-triazacyclododecane moieties and dansyl fluorophore groups has been elaborated starting from free triazacycloalkanes and employing Pd(0)-catalyzed amination at the macrocyclization step. The dependence of the products yields on the nature of reagents has been established. The majority of synthesized macrobicycles have been evaluated as possible chemosensors for detecting metal cations. Compound comprising 1,4,7-triazacyclononane and dioxadiamine linker proved to be a prospective colorimetric sensor for Cu(II) by changing its absorption spectrum in the presence of this cation, while other cryptands demonstrated full quenching of fluorescence in the presence of Cu(II) and Al(III) what makes them promising fluorescent molecular probes for these metals. Copyright В© 2017, Georg Thieme Verlag. All rights reserved.
Добавил в систему:
Малошицкая Ольга Александровна