Russian Journal of Organic Chemistry

, Volume 40, Issue 2, pp 199–205 | Cite as

Intramolecular 1,3-Dipolar Cycloaddition to Ester Carbonyl of Azomethinylides Prepared from Aldimines and Difluorocarbene

  • I. V. Voznyi
  • M. S. Novikov
  • A. F. Khlebnikov
  • J. Kopf
  • R. R. Kostikov
Article

Abstract

Azomethinylides generated by reaction of difluorocarbene with N-alkyl- and N-arylimines of O-acylated salycilaldehyde undergo intramolecular 1,3-dipolar cycloaddition to the ester carbonyl group forming regioselectively 2,5-epoxy-1,4-benzoxazepine derivatives.

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Copyright information

© MAIK “Nauka/Interperiodica” 2004

Authors and Affiliations

  • I. V. Voznyi
    • 1
  • M. S. Novikov
    • 1
  • A. F. Khlebnikov
    • 1
  • J. Kopf
    • 2
  • R. R. Kostikov
    • 1
  1. 1.St. Petersburg State UniversitySt. PetersburgRussia
  2. 2.Institut fur Anorganische ChemieHamburgGermany

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