Acta Cryst. (2003). E59, o360-o362  [ doi:10.1107/S160053680300401X ]

7-Nitro-1,2,3a,4-tetrahydrobenzo[b][1,3]oxazolo[3,2-d]oxazine: a new heterocycle

S. Vishnu Vardhan Reddy, A. Sivalakshmi Devi, K. Vyas, V. Venugopal Rao, Y. Koteswar Rao, A. Venkateswarlu and P. K. Dubey

Abstract: The title compound, C₁₀H₁₀N₂O₄, crystallizes with two independent molecules (A and B) in the asymmetric unit. The five-membered ring of the oxazole moiety adopts a half-chair conformation in molecule A and an envelope conformation in molecule B. The oxazine ring adopts a sofa conformation in both molecules.

Online 28 February 2003

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