New method for the synthesis of 6-amino-4-aryl-3,5-dicyano-3,4-dihydropyridine-2(1H)-thiones by recyclization of 4-aryl-2,6-diamino-4H-thiopyranes

Authors

  • B. Д. Дяченко T. G. Shevchenko Lugansk State Pedagogical Institute, Lugansk 348011
  • С. Г. Кривоколыско T. G. Shevchenko Lugansk State Pedagogical Institute, Lugansk 348011
  • Ю. А. Шаранин T. G. Shevchenko Lugansk State Pedagogical Institute, Lugansk 348011
  • В. П. Литвинов N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences (RAN), Moscow 117913

Abstract

Ammonium 6-amino-4-aryl-3,5-dicyano-1,4-dihydropyridine-2-thiolates were synthesized by recyclization of 4-aryl-2,6-diamino-3,5-dicyano-4H-thiopyranes in the presence of organic bases. On acidification of the products, the corresponding substituted 3,4-dihydropyridine-2(1H)-thiones were obtained which were used in the synthesis of 2-alkylthio-1,4-dihydropyridines, bis-(pyridyl-2)disulfides and thieno[2,3-b]pyridines.

How to Cite
Dyachenko, V. D.; Krivokolysko, S. G.; Sharanin, Y. A.; Litvinov, V. P. Chem. Heterocycl. Compd. 1997, 33, 793. [Khim. Geterotsikl. Soedin. 1997, 909.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF02253028

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Published

1997-07-25

Issue

No. 7 (1997)

Section

Original Papers