Abstract
Azophenol-quinone hydrazone tautomerism was detected for phenylazo derivatives of 3-hydroxypyridines and their N-oxides. The absorption maxima of the phenylazo derivatives of 3-hydroxypyridine have a greater (than their N-oxides) tendency to be shifted to the longer-wavelength region.
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L. Paoloni, T. L. Tosato, and M. Cignitti, Theoret. Chim. Acta (Berl.), 14, 221 (1969).
V. V. Ershov and G. A. Nikiforov, Usp. Khim., 35, 1953 (1966).
R. Kuhn and F. Bär, Ann., 516, 143 (1935).
H. Shingu, Scient. Papers Inst. Phys. Chem. Res. Tokyo, 35, 78 (1958).
A. Buraway and A. Thompson, J. Chem. Soc., 1443 (1953).
A. Buraway, A. Salem, and A. Thompson, J. Chem. Soc., 4793 (1952).
A. Buraway and I. Chamberlain, J. Chem. Soc., 3734 (1952).
K. M. Dyumaev, L. D. Smirnov, R. E. Lokhov, and B. E. Zaitsev, Izv. Akad. Nauk SSSR, Ser. Khim., 2601 (1970).
K. M. Dyumaev, R. E. Lokhov, and B. E. Zaitsev, Zh. Organ. Khim., (1973, in press).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 810–812, June, 1973
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Dyumaev, K.M., Lokhov, R.E. Tautomerism of phenylazo derivatives of 3-hydroxypyridine and their N-oxides. Chem Heterocycl Compd 9, 743–744 (1973). https://doi.org/10.1007/BF00472321
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DOI: https://doi.org/10.1007/BF00472321