Abstract
The structure of the perchlorates of 2,3,4-trimethyl-, 1,2,4-trimethyl-, 1,2,3,4-tetramethyl-, and 1,4-dimethyl-2-phenylpyrrolo[1, 2-a]benzimidazoles in trifluoroacetic acid has been studied by the PMR method. It has been established that in all cases on salt formation the proton adds to the carbon atom in position 1. The molecular diagram of pyrrolo[1,2-a]benzimidazole has been calculated by the MO LCAO method.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
F. S. Babichev and A. F. Babicheva, KhGS [Chemistry of Heterocyclic Compounds], 3, 917, 1967.
M. Fraser, A. Meller, B. Molloy, and D. Reid, J. Chem. Soc., 3288, 1962.
W. Armarego, J. Chem. Soc., 4226, 1964.
W. Armarego, J. Chem. Soc., (B), 191, 1966.
B. Molloy, D. Reid, and S. McKenzie, J. Chem. Soc., 4368, 1965.
G. Weland, J. Am. Chem. Soc., 64, 900, 1942.
G. Hammond, J. Am. Chem. Soc., 77, 334, 1955.
J. Busset and R. Brown, Chem. and Ind., 892, 1956.
Yu. A. Kruglyak, V. S. Kvakush, G. G. Dyadyusha, and V. I. Khil'chenko, Methods of Calculation in Quantum Chemistry [in Russian], Naukova dumka, Kiev, no. 1, 1967.
E. Jones, J. Chem. Soc., 274, 1948.
Author information
Authors and Affiliations
Additional information
For part VI, see [1].
Rights and permissions
About this article
Cite this article
Kornilov, M.Y., Dyadyusha, G.G. & Babichev, F.S. Isoelectronic analogs of indolizine. Chem Heterocycl Compd 4, 654–656 (1971). https://doi.org/10.1007/BF00481048
Issue Date:
DOI: https://doi.org/10.1007/BF00481048