Synthesis of indazole-N-oxides via the 1,7-electrocyclisation of azomethine ylides

Miklós Nyerges, Imre Fejes, Andrea Virányi, Paul W. Groundwater, László Toke

Research output: Article

18 Citations (Scopus)


The first example of the 1,7-electrocyclisation of a non-stabilised azomethine ylide, e.g. 2, onto a nitro group, to give a 1,2,6-oxadiazepine intermediate, e.g. 4, is reported. Subsequent ring contraction results in the formation of the indazole-N-oxides 5, 12, and 14.

Original languageEnglish
Pages (from-to)5081-5083
Number of pages3
JournalTetrahedron Letters
Issue number30
Publication statusPublished - júl. 23 2001


ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

Cite this