2-[(Z)-2-(p-Anisidino)-3,3,3-trifluoropropenyl]-4,4-dimethyl-2-oxazoline

The title compound, C₁₅H₁₇F₃N₂O₂, is a C-protected N-substituted β-enamino acid derivative. Bond lengths suggest π conjugation between the oxazoline (4,5-dihydro-1,3-oxazole) ring and the enamine double-bond moiety. Intramolecular hydrogen bonding is found between the N atom attached to the aromatic ring and the heterocyclic N atom. Because of steric hindrance between the aromatic ring and the trifluoromethyl group, the plane of the former adopts an almost perpendicular position with respect to the oxazoline ring plane.

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