(1-(4-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 H -1,2,3-triazol-4-yl)-methylenyls α,ω-Bisfunctionalized 3- and 4-PEG: Synthesis and Photophysical Studies

Two new azaheterocycle-based bolas, such as (1-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 -1,2,3-triazol-4-yl)-methylenyls α,ω-bisfunctionalized PEGs, were prepared via Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-(aryl)-oxadiazole-1,3,4 and terminal ethynyls derived from PEG-3 and PEG-4...

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Published in:Molecules (Basel, Switzerland) Switzerland), 2023-07, Vol.28 (13)
Main Authors: Mohammed, Mohammed S, Kovalev, Igor S, Slovesnova, Natalya V, Sadieva, Leila K, Platonov, Vadim A, Kim, Grigory A, Aluru, Rammohan, Novikov, Alexander S, Taniya, Olga S, Charushin, Valery N
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Explosive Agents
Trinitrotoluene
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container_title Molecules (Basel, Switzerland)
container_volume 28
creator Mohammed, Mohammed S
Kovalev, Igor S
Slovesnova, Natalya V
Sadieva, Leila K
Platonov, Vadim A
Kim, Grigory A
Aluru, Rammohan
Novikov, Alexander S
Taniya, Olga S
Charushin, Valery N
description Two new azaheterocycle-based bolas, such as (1-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 -1,2,3-triazol-4-yl)-methylenyls α,ω-bisfunctionalized PEGs, were prepared via Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-(aryl)-oxadiazole-1,3,4 and terminal ethynyls derived from PEG-3 and PEG-4. Due to the presence of two heteroaromatic cores and a PEG linker, these bola molecules are considered as promising fluorescent chemosensors for electron-deficient species. As a result of a well-pronounced "turn-off" fluorescence response towards common nitro-explosive components, such as 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT), hard-to-detect pentaerythritol tetranitrate (PETN), as well as Hg cation was observed.
doi_str_mv 10.3390/molecules28135256
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subjects Explosive Agents
Trinitrotoluene
title (1-(4-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 H -1,2,3-triazol-4-yl)-methylenyls α,ω-Bisfunctionalized 3- and 4-PEG: Synthesis and Photophysical Studies
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