Abstract
α,β-Unsaturated ketones of the imidazo[1,2-a]benztmidazole series were synthesized from 3-formyl- and 3-acetyl-substituted imidazo[1,2-a]benzimidazoles by crotonic condensation in the presence of alkaline catalysts. The α,β-unsaturated ketones can also be obtained by direct acylation of 3-unsubstituted imidazo[1,2-a]benzimidazoles with the chlorides of unsaturated acids. The properties and pharmacological activity of the ketones obtained were studied.
Similar content being viewed by others
Literature cited
V. A. Anisimova, N. I. Avdyunina, A. M. Simonov, G. V. Kovalev, and S. M. Gofman, Khim. Geterotsikl. Soedin., No. 1, 126 (1976).
S. H. Dandegaonker, Indian J. Appl. Chem., 29, Nos. 5–6, 157 (1966).
C. Fauran, J. Eberle, G. Raynaud, and J. Thoma, German Offen. No. 2159674; Chem. Abstr., 77, 140, 078 (1972).
J. Koo, J. Pharm. Sci., 53, 1329 (1964); Ref. Zh. Khim., 19G, 208 (1965).
V. F. Lavrushin, S. V. Tsukerman, and A. I. Artemenko, Zh. Obshch. Khim., 32, 1324 (1962).
A. M. Simonov, V. A. Anisimova, and N. I. Avdyunina, Inventoris Certificate No. 479770 (1974); Byul. Izobr., No. 29, 79 (1975).
K. Schilling, F. Krohnke, and B. Kickhofen, Ber., 88, 1093 (1955).
L. Bellamy, Infrared Spectra of Complex Molecules, Methuen (1958).
R. L. Erskin and E. S. Waight, J. Chem. Soc., 3425 (1960).
R. Mécke and K. Noack, Ber., 93, 210 (1960).
Author information
Authors and Affiliations
Additional information
See [1] for communication XIII.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1660–1665, December, 1976.
Rights and permissions
About this article
Cite this article
Anisimova, V.A., Avdyunina, N.I., Simonov, A.M. et al. Research on imidazo[1,2-a] benzimidazole derivatives. Chem Heterocycl Compd 12, 1365–1369 (1976). https://doi.org/10.1007/BF00476729
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00476729