Synthesis of 3-(2-hydroxyphenyl)-1,5-dialkyl-1H-1,2,4-triazoles and their Zn(II) complexes

It has been demonstrated by 13 C NMR and quantum-chemical calculations that alkylation of 5-(2-hydroxyphenyl)-3-methyl(vinylphenyl)-1 H -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-hydroxypheny...

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Bibliographic Details
Published in:Doklady. Chemistry 2017-02, Vol.472 (2), p.30-35
Main Authors: Mikhailov, I. E., Vikrishchuk, N. I., Popov, L. D., Beldovskaya, A. D., Dushenko, G. A., Revinskii, Yu. V., Minkin, V. I.
Format: Article
Language:English
Subjects:
Alkylation
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Emission spectra
Industrial Chemistry/Chemical Engineering
NMR
Nuclear magnetic resonance
Quantum chemistry
Spectral emittance
Triazoles
Visible spectrum
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Summary:It has been demonstrated by 13 C NMR and quantum-chemical calculations that alkylation of 5-(2-hydroxyphenyl)-3-methyl(vinylphenyl)-1 H -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)-1 H -1,2,4-triazoles. Emission spectra of these compounds show two weak bands (λ max fl = 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 max fl = 373–377 nm, φ = 0.20–0.25).
ISSN:0012-5008
1608-3113
DOI:10.1134/S0012500817020045