Acta Cryst. (2002). E58, o1125-o1127  [ doi:10.1107/S1600536802016598 ]

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

M. F. A. Adamo, S. Chimichi, D. Donati and P. Sarti-Fantoni

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.

Online 20 September 2002

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