A CONVENIENT ONE-POT SYNTHESIS OF BENZOPYRIMIDO[1,8]NAPHTHYRIDINES BY KNOEVENAGEL CONDENSATION

Authors

  • R. Nandha Kumar Departament of Chemistry, Bharathiar University, Coimbatore-641046, TamilNadu
  • T. Suresh Departament of Chemistry, Bharathiar University, Coimbatore-641046, TamilNadu
  • P. S. Mohan Departament of Chemistry, Bharathiar University, Coimbatore-641046, TamilNadu

Keywords:

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

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.

How to Cite
Nandha Kumar, R.; Suresh, T.; Mohan, P. S.  Chem. Heterocycl. Compd. 2004, 40, 1490. [Khim. Geterotsikl. Soedin. 2004, 1723.]

For this article in the English edition, see DOI 10.1007/s10593-005-0077-8

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Published

2023-12-18

Issue

No. 11 (2004)

Section

Original Papers