Regioselective synthesis of substituted thieno[2,3-<i>b</i>]pyrimidines and pyrido[3′,2′:4,5]thienopyrimidines and their [3,2-<i>d</i>]selenopheno analogs from 3-cyanopyridine-2(1H)-thiones, 3-cyano-pyridine-2(1H)-selenones, and N-cyanochloracetamidine

Abstract

3-Cyanopyridine-2(1H)-thiones and 3-cyano-2(1H)-selenones undergo heteroannelation with N-cyanochloracetarnidine to give thieno[2,3-b]pyridines, selenopheno[2,3-b]pyridines, 2,4-diaminopyrido[3′, 2′:4, 5]thieno[3,2-d]pyrimidines, and 2, 4-diaminopyrido[3′,2′:4,5]selenopheno[3,2-d]pyrimidines, which were converted to compounds containing triazine, anzinopyrimidine, and pyrimidinedione rings.

How to Cite
Artemov, V. A.; Rodinovskaya, L. A.; Shestopalov, A. M.; Litvinov, V. P. Chem. Heterocycl. Compd. 1994, 30, 110. [Khim. Geterotsikl. Soedin. 1994, 122.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01164746