Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)


organic compounds



su2547 scheme

Acta Cryst. (2013). E69, o312    [ doi:10.1107/S1600536813002511 ]

8-Bromo-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]isoxazole-3a-carbonitrile

G. Suresh, J. Srinivasan, M. Bakthadoss and S. Aravindhan

Abstract: In the title compound, C17H11BrN2O2, the five-membered isoxazole ring has an envelope conformation with the C atom bearing the phenyl ring as the flap. The pyran ring has a half-chair conformation. In the chromeno ring system, the dihedral angle between the mean plane of the pyran ring and the benzene ring is 4.68 (2)°. The dihedral angle between the mean planes of the chromeno ring system and the isoxazole ring is 13.79 (15)°. The latter forms a dihedral angle of 34.10 (17)° with the phenyl ring. In the crystal, molecules are linked by C-H...N hydrogen bonds, forming an undulating two-dimensional network parallel to the ab plane.


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