Tautomerism of azine derivatives. 7. Thermodynamic parameters of the 1,3-prototropic tautomeric equilibrium of azahetarylmethanes

Tautomerism of azine derivatives. 7. Thermodynamic parameters of the 1,3-prototropic tautomeric equilibrium of azahetarylmethanes Full article

Journal

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

Output data

Year: 1984, Volume: 20, Number: 6, Pages: 680-683 Pages count : DOI: 10.1007/BF00508684

Authors

Petrenko O. P. , Bychkov S. F. , Lapachev V. V. , 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 hetaryl-ylidene tautomeric equilibrium in CDCl3 over a wide range of temperatures were measured for azinylmalonic and azinylcyanoacetic acid esters. High-temperature sensitivity of the position of the equilibrium for 2-pyrimidinylcyanoacetic acid esters was demonstrated. The differences in the δS values of the equilibrium for derivatives of malonic and cyanoacetic acid esters were explained by different freedoms of rotation about the exocyclic C-C bond in the aromatic tautomeric form. © 1984 Plenum Publishing Corporation.

Petrenko O.P. , Bychkov S.F. , Lapachev V.V. , Mamaev V.P.
Tautomerism of azine derivatives. 7. Thermodynamic parameters of the 1,3-prototropic tautomeric equilibrium of azahetarylmethanes
Chemistry of Heterocyclic Compounds. 1984. V.20. N6. P.680-683. DOI: 10.1007/BF00508684 Scopus РИНЦ OpenAlex

Published print:

Jun 1, 1984

Scopus:	2-s2.0-34250140866
Elibrary:	30915570
OpenAlex:	W2950487888

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