Abstract
The title compound, C21H23N3O4, adopts an E configuration about the central C=N double bond and the pyrazolone ring is almost planar, with a maximum deviation of 0.042 (1) Å. The central pyrazolone ring makes dihedral angles of 51.96 (5) and 3.82 (5)° with the attached phenyl and the trimethoxy-substituted benzene rings, respectively. The dihedral angle between the phenyl ring and the trimethoxy-substituted benzene ring is 50.19 (5)° and an intramolecular C—H⋯O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by intermolecular C—H⋯O and C—H⋯N hydrogen bonds.
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More From: Acta Crystallographica Section E Structure Reports Online
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