Abstract
It was found by means of their ER, UV, and PMR spectra that [6,7]benzoskatolideneacetones have a side chain in the trans-s-cis form, whereas the [4, 5] isomers have a side chain in the cis-s-cis form. It was concluded from the integral intensities of the bands of the vibrations of the double bond (AC=C)) and the parameters of the UV spectra that the investigated molecules have a planar structure. The AC=C) integral intensities in the IR spectra exceed the previously observed values and, in the case of [6,7]benzoskatolideneacetones, reach ∼6· 104 mole−1liter·cm−2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
V. N. Eraksina, L. B. Shagalov, and N. N. Suvorov, Khim. Geterotsikl. Soedin., 1257 (1975).
R. L. Erskine and E. S. Waight, J. Chem. Soc., 3425 (1960).
N. Jones, D. A. Ramsay, D. S. Keir, and K. Dobriner, J. Amer. Chem. Soc.,74, 80 (1952).
B. Ya. Zaitsev and Yu. N. Sheinker, Izv. Akad. Nauk SSSR,11, 2070 (1962).
R. Mecke and K. Noack, Spectrochim. Acta,12, 391 (1958).
R. Noack and R. N. Jones, Can. J. Chem.,39, 2201 (1961).
J. Ronayne, M. V. Sargent, and D. H. Williams, J. Amer. Chem. Soc.,88, 5288 (1966).
D. A. Ramsay, J. Amer. Chem. Soc.,74, 72 (1952).
Author information
Authors and Affiliations
Additional information
See [1] for communication XI.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1347–1352, October, 1975.
Rights and permissions
About this article
Cite this article
Shagalov, L.B., Ivanova, T.M., Babushkina, T.A. et al. Benzindoles XII. Spectra and three-dimensional structures of [6,7]- and [4,5]benzoskatolideneacetones. Chem Heterocycl Compd 11, 1151–1155 (1975). https://doi.org/10.1007/BF00667612
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00667612