title: 2-Phenyl-4-(3,4,5-trimethoxy-benzyl-idene)-1,3-oxazol-5(4H)-one.
abstract: The title compound, C(19)H(17)NO(5), was synthesized as part of a continuing project involving the structures of oxazolone derivatives. The mol-ecule adopts a Z configuration about the central olefinic bond. The 2-phenyl ring is slightly twisted out of the plane of the oxazolone ring system by 11.2 (2)°. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
authors.forename: Yi-Feng
authors.initials: YF
authors.lastname: Sun
authors.forename: Yi-Ping
authors.initials: YP
authors.lastname: Cui