Abstract
The study of the behavior of cisoid two-ring ketones from substituted cyclohexanones and (−)-menthone was continued. The steric effect of a bulky substituent attached to the 8-C atom of the quinolone system on the conformation of the molecule was established; this effect leads to disruption of the conjugation of the p-electron pair of the nitrogen atom in the enamino ketone portion of the chromophore.
Similar content being viewed by others
Literature cited
V. M. Potapov, V. M. Dem'yanovich, T. V. Skvortsova, and V. V. Melekhina, Vestn. Mosk. Gos. Univ., No. 4, 459 (1977).
A. A. Kiryushkin, V. M. Potapov, G. V. Kiryushkina, and G. N. Koval', Zh. Obshch. Khim., 42, 936 (1972).
V. M. Potapov, G. V. Grishina, E. V. Korotkov, and G. N. Koval', Khim. Geterotsikl. Soedin., No. 4, 511 (1976).
V. M. Potapov, G. V. Kiryushkina, G. N. Koval', and G. P. Tokmakov, Khim. Geterotsikl. Soedin., No. 4, 541 (1972).
G. Snatzke, Optical Rotatory Dispersion and Circular Dichroism in Organic Chemistry [Russian translation], Mir, Moscow (1970).
K. Hohenlohe-Ochringen and G. Zimmer, Monatsh., 94, 1225 (1963).
N. J. Leonard, F. E. Fischer, E. Barthel, J. Figneras, and W. C. Wildman, J. Am. Chem. Soc., 73, 2371 (1951).
G. Stork and S. M. McElvain, J. Am. Chem. Soc., 69, 971 (1947).
E. Beckmann, Ann., 250, 322 (1888).
Advances in Organic Chemistry [Russian translation], Vol. 4, Mir, Moscow (1966), p. 109.
L. K. Fridlin, N. M. Nazarova, and D. L. Badalova, Uzbeksk. Khim. Zh., 9, No. 6, 23 (1965).
Author information
Authors and Affiliations
Additional information
Communication XLV from the series “Stereochemical studies.” See [1] for communication XLIV.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 508–510, April, 1978.
Rights and permissions
About this article
Cite this article
Potapov, V.M., Grishina, G.V. & Koval', G.N. Steric effect of substituents on the nature of the chromophore in δ9,10-octahydro-4-quinolones. Chem Heterocycl Compd 14, 416–418 (1978). https://doi.org/10.1007/BF00472157
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00472157