Acta Cryst. (2007). E63, o4025-o4026  [ doi:10.1107/S1600536807043632 ]

2-(4-Chlorophenyl)-3-{[(1E)-(4-chlorophenyl)methylene]amino}-2,3-dihydroquinazolin-4(1H)-one

R. J. Butcher, J. P. Jasinski, B. Narayana, K. Sunil and H. S. Yathirajan

Abstract: The title molecule, C₂₁H₁₅Cl₂N₃O, consists of two coplanar 4-chlorophenyl groups bonded to a distorted (envelope) dihydroquinazoline ring with a dihedral angle of 58.9 (1)° between the 4-chlorophenyl groups. The angles between the mean planes of the benzyl group of the nonplanar dihydroquinazoline group and those of the two 4-chlorophenyl groups are 82.0 (6) and 84.3 (3)°, respectively. The torsion angle of the methylene amine linkage indicates a significant twist between the dihydroquinazolin-4(1H)-one and attached 4-chlorophenyl group. Disordered chlorine atoms (0.86:0.14) occur within the singly attached 4-chlorophenyl group bonded to the dihydroquinazoline ring. Crystal packing is stabilized by intermolecular N-HO hydrogen bonding between dihydroquinazoline groups, linking the molecules into chains along the b axis.

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