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

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Chemistry of Heterocyclic Compounds Aims and scope

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[2,3d]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.

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Authors
  1. A. Sh. Oganisyan
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  2. A. S. Noravyan
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Additional information

For Communication 11 see [1].

A. A. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences, Republic of Armenia, Erevan 375014. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1388–1391, October, 1988.

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Oganisyan, A.S., Noravyan, A.S. Derivatives of condensed thienopyrimidines 12. Synthesis of substituted pyrano(thiopyrano)-[4′,3′∶4,5]thieno[2,3-d]pyrimidines. Chem Heterocycl Compd 34, 1181–1184 (1998). https://doi.org/10.1007/BF02319498

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  • DOI: https://doi.org/10.1007/BF02319498

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