Tautomerism of derivatives of azines. 16. Tautomerism of acylmethylpyrazines and -quinoxalines

Tautomerism of derivatives of azines. 16. Tautomerism of acylmethylpyrazines and -quinoxalines Full article

Journal

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

Output data

Year: 1987, Volume: 23, Number: 12, Pages: 1339-1342 Pages count : 4 DOI: 10.1007/BF00472261

Authors

Mainagashev I.Ya. ¹ , Lapachev V.V. ¹ , Fedotov M.A. ¹ , Mamaev V.P. ¹

Affiliations

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

The tautomeric equilibria of acylmethylpyrazines and -quinoxalines in chloroform were studied by 1H, 14N, and 17O NMR spectroscopy. It was shown that keto-enol tautomerism is realized in the acylmethylpyrazine series. Annelation leads to the development of an ylidene tautomer in the acylmethylquinoxaline series. A marked dependence of the position of the intrachelate equilibrium on the character of the solvent was observed. © 1988 Plenum Publishing Corporation.

Mainagashev I.Y. , Lapachev V.V. , Fedotov M.A. , Mamaev V.P.
Tautomerism of derivatives of azines. 16. Tautomerism of acylmethylpyrazines and -quinoxalines
Chemistry of Heterocyclic Compounds. 1987. V.23. N12. P.1339-1342. DOI: 10.1007/BF00472261 Scopus РИНЦ

Published print:

Dec 1, 1987

Scopus	2-s2.0-34250092627
Elibrary	30867102
OpenAlex	W1987709918