Abstract
The effect of solvents on the position of the azinyl-ylidene tautomeric equilibrium in series of azinylmethanes was studied. It was shown that an increase in the polarity of the solvent leads to stabilization of the ylidene tautomer; the sensitivity of the tautomeric equilibrium to the effects of the solvent depends on the form of the side fragment that undergoes tautomerization. It was concluded that stabilization of the ylidene tautomeric form by polar solvents is a general tendency in series of prototropic equilibrium of the azinyl-ylidene type as a whole.
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See [1] for Communication 16.
Deceased.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1668–1672, December, 1987.
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Petrenko, O.P., Lapachev, V.V., Korobeinicheva, I.K. et al. Tautomerism of derivatives of azines. 17. Effect of solvents on the position of the azinyl-ylidene tautomeric equilibrium of substitued azinylmethanes. Chem Heterocycl Compd 23, 1343–1347 (1987). https://doi.org/10.1007/BF00472262
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DOI: https://doi.org/10.1007/BF00472262