Tautomerism of derivatives of azines. 18. Effect of solvents on intrachelate tautomerism of the [1,5]-sigmatropic type in the acylmethylazine series

Tautomerism of derivatives of azines. 18. Effect of solvents on intrachelate tautomerism of the [1,5]-sigmatropic type in the acylmethylazine series Full article

Journal

Chemistry of Heterocyclic Compounds
ISSN: 0009-3122 , E-ISSN: 1573-8353

Output data

Year: 1988, Volume: 24, Number: 4, Pages: 424-430 Pages count : DOI: 10.1007/BF00478863

Authors

Mainagashev I. Ya. , Petrenko O. P. , Lapachev V. V. , Fedotov M. A. , Korobeinicheva I. K. , Mamaev V. P.

Affiliations

1	(Scopus) Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk, 630090, Russian Federation

The constants of the intrachelate tautomeric equilibria of trifluoro- and trichloroacetonylpyridines in aprotic and hydroxy-containing solvents were determined by 1H, 14N, and 17O NMR spectroscopy and UV spectrophotometry. It is shown that an increase in the polarity of the solvent and transition to hydroxy-containing solvents are accompanied by a shift of the intrachelate equilibrium to favor the ylidene tautomer. © 1988 Plenum Publishing Corporation.

Mainagashev I.Y. , Petrenko O.P. , Lapachev V.V. , Fedotov M.A. , Korobeinicheva I.K. , Mamaev V.P.
Tautomerism of derivatives of azines. 18. Effect of solvents on intrachelate tautomerism of the [1,5]-sigmatropic type in the acylmethylazine series
Chemistry of Heterocyclic Compounds. 1988. V.24. N4. P.424-430. DOI: 10.1007/BF00478863 Scopus РИНЦ

Published print:

Apr 1, 1988

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