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Chemistry of Heterocyclic Compounds

, Volume 46, Issue 9, pp 1127–1132 | Cite as

Condensed diazepines. synthesis of 1-aryl-3,5-dihydro-4H-1-benzofuro-[2,3-d][1,2]diazepin-4-ones

  • A. B. Eresko
  • V. S. Tolkunov
  • S. V. Tolkunov
Article

The cyclocondensation of (2-aroyl-1-benzofuran-3-yl)acetic acids and their methyl esters with hydrazine hydrate under various experimental conditions has been studied. Optimal conditions have been found for obtaining 1-aryl-3,5-dihydro-4H-1-benzofuro[2,3-d][1,2]diazepin-4-ones.

Keywords

(2-aroyl-1-benzofuran-3-yl)-acetic acids 1-aryl-3,5-dihydro-4H-1-benzofuro[2,3-d][1,2]diazepin- 4-ones hydrazine hydrate condensed diazepines polyphosphoric acid benzoylation cyclization 

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Copyright information

© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • A. B. Eresko
    • 1
  • V. S. Tolkunov
    • 1
  • S. V. Tolkunov
    • 1
  1. 1.L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal ChemistryNational Academy of Sciences of UkraineDonetskUkraine

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