Abstract
It has been demonstrated by 13C NMR and quantum-chemical calculations that alkylation of 5-(2-hydroxyphenyl)-3-methyl(vinylphenyl)-1H-1,2,4-triazoles with dialkyl sulfates in aqueous DMSO in the presence of alkali occurs exclusively in the 2-position of the triazole ring to give 3-(2-hydroxyphenyl)-1,5-dialkyl(alkylvinylphenyl)-1H-1,2,4-triazoles. Emission spectra of these compounds show two weak bands (λ flmax = 317–346 and 430–447 nm, φ = 0.002–0.007), whereas their zinc complexes emit in the violet range of the visible spectrum (λ flmax = 373–377 nm, φ = 0.20–0.25).
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Original Russian Text © I.E. Mikhailov, N.I. Vikrishchuk, L.D. Popov, A.D. Beldovskaya, G.A. Dushenko, Yu.V. Revinskii, V.I. Minkin, 2017, published in Doklady Akademii Nauk, 2017, Vol. 472, No. 6, pp. 675–680.
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Mikhailov, I.E., Vikrishchuk, N.I., Popov, L.D. et al. Synthesis of 3-(2-hydroxyphenyl)-1,5-dialkyl-1H-1,2,4-triazoles and their Zn(II) complexes. Dokl Chem 472, 30–35 (2017). https://doi.org/10.1134/S0012500817020045
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DOI: https://doi.org/10.1134/S0012500817020045