Ethyl 5-oxo-2,5-dihydro-4-isoxazolecarboxylate hydroxylamine salt

A.R. Kennedy, A.I. Khalaf, C.J. Suckling, R.D. Waigh

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The isoxazole proton is sufficiently acidic to give the title salt, hydroxylammonium 4-(ethyloxycarbonyl)-5-oxo-2,5-dihydroisoxazolide, NH3OH+.C6H6NO4-, in the presence of hydroxylamine. The deprotonation of the heterocyclic ring has a profound effect on its geometry, notably increasing the N-O distance by 0.05 A to 1.433 (2) A.
Original languageEnglish
Pages (from-to)1410-1412
Number of pages2
JournalActa Crystallographica Section E: Structure Reports
Issue number9
Publication statusPublished - Sep 2003


  • Ethyl 5-oxo-2
  • isoxazoles
  • hydroxy­l­ammonium 4
  • heterocyclic ring
  • geometry
  • pure and applied chemistry

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