Abstract
The effect of the structure and the medium on the position and intensity of the absorption bands in the UV spectra that attest to the presence of a single conjugation system in N-vinylpyrroles is thoroughly analyzed. The tendency for a reduction in the intensity of the conjugation (disruption of the coplanarity) is appreciable as branching of the alkyl group in the 2 position increases. A pronounced interaction of the benzene and ethylene fragments through the pyrrole ring is observed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
B. A. Trofimov, A. S. Atavin, G. A. Kalabin, A. I. Mikhaleva, and E. G. Chebotareva, Zh. Organ. Khim., 9, 2205 (1973).
B. A. Trofimov, S. E. Korostova, and L. N. Balabanova, Khim. Geterotsikl. Soedin. (1975, in press).
B. A. Trofimov, G. A. Kalabin, A. S. Atavin, A. I. Mikhaleva, and E. G. Chebotareva, Khim. Geterotsikl. Soedin., 360 (1975).
G. F. Bol'shakov, V. S. Vatago, and F. B. Agrest, Ultraviolet Spectra of Heteroorganic Compounds [in Russian], Khimiya, Leningrad (1969), p. 22.
A. Stern and K. Timmons, Electronic Absorption Spectroscopy in Organic Chemistry [Russian translation], Mir, Moscow (1974), p. 195.
N. Solony and F. W. Birss, Canad. J. Chem., 43, 1569 (1965).
L. I. Lagut-skaya, Teor. i Éksperim. Khim., 9, 159 (1973).
E. A. Braude and F. Sondheimer, J. Chem. Soc., 3754 (1954).
Author information
Authors and Affiliations
Additional information
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1225–1229, September, 1975.
Rights and permissions
About this article
Cite this article
Trofimov, B.A., Golovanova, N.I., Mikhaleva, A.I. et al. UV spectra of N-vinylpyrroles. Chem Heterocycl Compd 11, 1066–1069 (1975). https://doi.org/10.1007/BF00471297
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00471297