Triethylammonium 8-acetyl-3-methyl-9-phenyl-7-oxo-2-azaspiro[4.5]dec-2-ene-4-nitronate

Abstract

The aci­nitro group in the title compound, C6H16N+·C17H17N2O5−, is almost coplanar with the isoxazoline ring, which assumes a flattened envelope conformation. The cyclo­hexanone ring adopts a half-chair conformation and carries a perpendicular [83.54 (10)°] phenyl ring and a bent [64.30 (17)°] acetyl group. The triethyl­ammonium residue forms a hydrogen bond with the nitro­nate moiety. Intermolecular interaction is exerted through a hydrogen bond between the acidic H atom of the cyclo­hexanone ring and the N atom of the isoxazoline ring.