Acta Cryst. (2007). E63, o1756-o1758  [ doi:10.1107/S1600536807010719 ]

3-(3-Chloro-4-fluorophenyl)-2-(2-chlorophenoxy)-3,4-dihydro-2H-1,3,2-benzoxazaphosphorine 2-oxide

M. Krishnaiah, J. Radha Krishna, Y. B. Kiran, C. Devendranath Reddy, W. Thetmar and P. Kaung

Abstract: In the title compound, C₁₉H₁₃Cl₂FNO₃P, the six-membered 1,3,2-oxazaphosphorine ring adopts a screw boat conformation, with the phosphoryl O atom in an axial position. The chlorofluorobenzene and chlorophenoxy groups are nearly perpendicular to each other, with a dihedral angle of 82.53 (1)° between them, and are equatorially oriented with dihedral angles of 59.03 (1) and 26.15 (2)°, respectively, with respect to the mean plane of the heterocyclic ring.

Online 14 March 2007

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