Tautomerism of azine derivatives - III. Tautomerism of substituted 4-pyrimidinylmethanes Научная публикация
| Журнал |
Chemistry of Heterocyclic Compounds
ISSN: 0009-3122 , E-ISSN: 1573-8353 |
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| Вых. Данные | Год: 1978, Том: 14, Номер: 11, Страницы: 1257-1260 Страниц : 4 DOI: 10.1007/BF00509749 | ||
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Реферат:
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.
Библиографическая ссылка:
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
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
Даты:
| Опубликована в печати: | 1 нояб. 1978 г. |
Идентификаторы БД:
| Scopus: | 2-s2.0-34250261268 |
| РИНЦ: | 30920120 |
| OpenAlex: | W2886260951 |