(Z)-4-[(S)-2,2-Dimethyl-1,3-dioxolan-4-ylmethylidene]-2-phenyl-1,3-oxazol-5(4H)-one

In the title compound, C₁₅H₁₅NO₄, the whole molecule, except for the dioxolane ring, adopts a nearly planar conformation. The dioxolane ring, which has an envelope conformation, is mainly situated on the si,si diastereotopic face of the olefinic bond. In the crystals of the title compound, rows of mol­ecules are held together along the x direction by CO intermolecular hydrogen bonds.