(E)-1-(Pyridin-2-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one

Abstract

In the title heteroaryl chalcone derivative, C 17H 17NO 4, the dihedral angle between the pyridine and benzene rings is 10.82 (5)°. The two methoxy groups at the meta positions are essentially coplanar with the attached benzene rings [C - O - C - C torsion angles = -0.97 (14) and 179.47 (9)°], whereas the methoxy group at the para position is twisted from the attached ring with a C - O - C - C torsion angle of -104.48 (11)°. A C - H⋯O close contact involving two of the methoxy groups generates an S(6) ring motif. In the crystal, molecules are linked by weak C - H⋯O interactions into columns along the b axis.