Abstract
Two different convenient methods have been developed for the synthesis of condensed thieno[2,3-b]pyridines. The intramolecular cyclization of 3-amino-2-hydrazinocarbonyl-7,7-dimethyl-7,8-dihydo-5H-pyrano[3,4-e]-thieno[2,3-b]pyridine was carried out to give 7,7-dimethyl-2-oxo-1,2,6,7-tetrahydro-9H-pyrano[3′,4′-e]-imidazo[4″,5″∶2,3]thieno[5,4-b]pyridine, which is the first representative of a new heterocyclic system.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Negwer, Organische Chemische Arzneimettel und Synonyma, Vol. 1, Berlin (1978), p. 606; Vol. 2, Berlin (1978), p. 1215.
S. G. Pilosyan, V. V. Dabaev, and A. S. Noravyan, Arm. Khim. Zh.,44, 479 (1991).
S. G. Pilosyan, V. V. Dabaev, B. D. Enokyan, É. A. Abgaryan, and A. S. Noravyan, Arm. Khim. Zh.,41, 687 (1988).
Additional information
A. D. Mndzhoyan Institute of Fine Organic Chemistry, Academy of Sciences of the Republic of Armenia, 375014 Yerevan. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 847–850, June, 1997.
Rights and permissions
About this article
Cite this article
Dabaeva, V.V., Noravyan, A.S., Madakyan, V.N. et al. Synthesis of new condensed thieno[2,3-b]pyridines containing pyrimidine and imidazole rings. Chem Heterocycl Compd 33, 741–744 (1997). https://doi.org/10.1007/BF02291811
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02291811