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Chemistry of Heterocyclic Compounds

, Volume 50, Issue 10, pp 1444–1449 | Cite as

4-Hydroxyquinolones-2. 247*. 4-Hydroxy-2-Oxo-1,2-Dihydroquinoline or 4-Hydroxy-2,2-Dioxo-1Н-2λ6,1-Benzothiazine?

  • I. V. UkrainetsEmail author
  • L. A. Petrushova
  • A. A. Davidenko
  • L. A. Grinevich
Article

Methyl 2-{[(2-{methyl[2-(methoxycarbonyl)phenyl]amino}-2-oxoethyl)sulfonyl](methyl)amino}benzoate cyclized in the presence of bases giving exclusively 2-substituted anilides of 4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-sulfonic acid, regardless of the strength of the base used.

Keywords

4-hydroxy-2,2-dioxo-1Н-2λ6,1-benzothiazines 4-hydroxy-2-oxo-1,2-dihydroquinolines heterocyclization 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • I. V. Ukrainets
    • 1
    Email author
  • L. A. Petrushova
    • 1
  • A. A. Davidenko
    • 2
  • L. A. Grinevich
    • 1
  1. 1.National University of PharmacyKharkivUkraine
  2. 2.N. I. Pirogov Vinnitsa National Medical UniversityVinnitsaUkraine

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