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Chemistry of Heterocyclic Compounds

, Volume 40, Issue 11, pp 1490–1492 | Cite as

A convenient one-pot synthesis of benzopyrimido[1,8]naphthyridines by knoevenagel condensation

  • R. Nandha Kumar
  • T. Suresh
  • P. S. Mohan
Article
  • 65 Downloads

Abstract

A series of 1-oxo-2,4-diphenyl-3-thioxobenzo[g]pyrimido[6,5-b]-1,8-naphthyridines has been synthesized by Knoevenagel condensation from 3-formyl-2-oxoquinolines and N,N-diphenyl-2-thiobarbituric acid on refluxing with liquid ammonia in absolute ethanol.

Keywords

benzopyrimidonaphthyridines N,N-diphenyl-2-thiobarbituric acid 3-formyl-2-oxoquinoline Knoevenagel condensation 

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Copyright information

© Springer Science+Business Media, Inc. 2004

Authors and Affiliations

  • R. Nandha Kumar
    • 1
  • T. Suresh
    • 1
  • P. S. Mohan
    • 1
  1. 1.Departament of ChemistryBharathiar UniversityTamilNaduIndia

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