Tautomerism of azine derivatives - III. Tautomerism of substituted 4-pyrimidinylmethanes

Tautomerism of azine derivatives - III. Tautomerism of substituted 4-pyrimidinylmethanes Full article

Journal

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

Output data

Year: 1978, Volume: 14, Number: 11, Pages: 1257-1260 Pages count : 4 DOI: 10.1007/BF00509749

Authors

Lapachev V.V. , Zagulyaeva O.A. , Bychkov S.F. , Mamaev V.P.

Affiliations

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

The tautomeric properties of 4-pyrimidinylmethanes were studied in the case of 2-CH3- and 2-CF3-4-pyrimidinylcyanoacetic esters, 2-CH3-4-pyrimidinylnitromethane, and 4-pyrimidinylnitromethane. It was shown by 1H and 13C NMR spectroscopy that an equilibrium with the participation of three tautomeric forms - pyrimidine form A and pyrimidinylidene forms B and C with "o- and p-quinoid" orientations of the double bonds in the heteroring - may be realized in aprotic dipolar solvents (dimethyl sulfoxide). © 1979 Plenum Publishing Corporation.

Lapachev V.V. , Zagulyaeva O.A. , Bychkov S.F. , Mamaev V.P.
Tautomerism of azine derivatives - III. Tautomerism of substituted 4-pyrimidinylmethanes
Chemistry of Heterocyclic Compounds. 1978. V.14. N11. P.1257-1260. DOI: 10.1007/BF00509749 Scopus РИНЦ OpenAlex

Published print:

Nov 1, 1978

Scopus:	2-s2.0-34250261268
Elibrary:	30920120
OpenAlex:	W2886260951

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