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Synthesis and Fluorescence of (E)‐3‐Aryl‐2‐(5‐aryl‐4H‐1,2,4‐triazol‐3‐yl) Acrylonitriles
Author(s) -
Zribi Lazhar,
Ismaili Lhassane,
VieiraFerreira Luís F.,
FerreiraMachado Isabel L.,
MarcoContelles José,
Chabchoub Fakher
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202100571
Subject(s) - aryl , fluorescence , stereospecificity , chemistry , photochemistry , stereochemistry , organic chemistry , catalysis , physics , alkyl , quantum mechanics
Herein we report the synthesis of ( E )‐3‐aryl‐2‐(5‐aryl‐4 H ‐1,2,4‐triazol‐3‐yl)acrylonitriles 3 a – k whose fluorescence properties have been investigated for the first time. A plausible reaction mechanism has been proposed to explain the total observed stereospecific formation of the E ‐isomers of compounds 3 a – k . The fluorescence analysis of compounds 3a‐f has revealed relatively low values of the fluorescence emission quantum yields in a range of ∼1 to 10 %, depending in the nature of the substituents.