Crystal and molecular structure of 4(4′N,N-dimethylamino) benzylidene-2-phenyloxazolin-5-one

The crystal structure of the title compound, C18H16N2O2 has been determined by X-ray diffraction. The benzylidene ring A, the oxazolin-5-one ring system B and the attached phenyl ring C of the title compound (II) are almost planar having interplanar angles between A and B and that between B and C are 4.10degrees and 3.03degrees respectively. The N,N-dimethyl group is nearly coplanar with the benzylidene ring plane. There is no intermolecular hydrogen bond and the molecule is stabilised by the normal van der Waals interaction in the crystalline assembly.