Derivatives of condensed thienopyrimidines 12. Synthesis of substituted pyrano(thiopyrano)[4′,3′∶4,5]thieno[2,3-<i>d</i>]pyrimidines

Authors

  • А. Ш. Оганисян A. A. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences, Republic of Armenia, Erevan 375014
  • А. C. Норавян A. A. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences, Republic of Armenia, Erevan 375014

Abstract

A method for the synthesis of new condensed derivatives of 4-oxo-2-thioxo-5,6-dihydro-8H-pyrano(thiopyrano)[4′,3′∶4,5]thieno[2,3-d]pyrimidines has been developed. It has been established that with increasing electron acceptor ability of the substituents on the nitrogen atom of the isothiocyanate starting materials there is a marked formation of 2-N'-thioureide derivatives of the condensed thiophenes.

How to Cite
Oganisyan, A. S.; Noravyan, A. S. Chem. Heterocycl. Compd. 1998, 34, 1181. [Khim. Geterotsikl. Soedin. 1998, 34, 1388.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF02319498

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Published

1998-10-25

Issue

No. 10 (1998)

Section

Original Papers