《Synthesis, structural characterization, photophysical study and investigation as fluorescent sensor towards metal ions of 1,2,3-triazole-azaindene hybrids》 was written by Sacarescu, Liviu; Dascalu, Mihaela; Chibac-Scutaru, Andreea-Laura; Roman, Gheorghe. Product Details of 623-47-2This research focused ontriazole azaindene metal ion detection optical structural property. The article conveys some information:
The effect of conjugation between 1,2,3-triazole ring system and azaindene scaffolds (either indolizine or imidazo[1,2-a]pyridine) on fluorescence has been examd Three novel 1,2,3-triazole-indolizine hybrids have been prepared either through the Chichibabin indolizine formation or using 1,3-dipolar cycloaddition of activated alkynes to a pyridinium N-ylide, while a structurally related 1,2,3-triazole-substituted imidazo[1,2-a]pyridine was obtained via the Chichibabin reaction. The structures of two of the 1,2,3-triazole-indolizine hybrids have been established by single crystal X-ray diffraction. All novel compounds were investigated using UV-vis spectroscopy. Comparison between the fluorescence of 1,2,3-triazole-azaindenes and the fluorescence of analogous azaindenes that lack the 1,2,3-triazole moiety has shown a twofold amplification of fluorescence as a result of incorporation of the 1,2,3-triazole ring system in the structure of the novel hybrids. The 1,2,3-triazole-susbstituted imidazo[1,2-a]pyridine exhibited a stronger fluorescence emission than related 1,2,3-triazole-indolizine hybrids, therefore the former compd sensing ability against metal ions was evaluated. The 1,2,3-triazole-substituted imidazo[1,2-a]pyridine showed selective detection towards Hg2+ and UO2+2 with similar detection limits of approx. 4.5 x 10-5 M. In the experiment, the researchers used Ethyl propiolate(cas: 623-47-2Product Details of 623-47-2)
Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Product Details of 623-47-2
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