Crystal structure of 5-[4-(dimethylamino)phenyl]-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazole-1-carbaldehyde

Abstract

The title compound, C19H21N3O, comprises a central pyrazole ring which is N-connected to an aldehyde group and C-connected twice to substituted benzene rings. The pyrazole ring is twisted on the C - C single bond, and the least-squares plane through this ring forms dihedral angles of 82.44(5) and 4.52(5)° with the (dimethylamino)benzene and p-tolyl rings, respectively. In the crystal, weak C - H⋯O hydrogen bonds link molecules into supramolecular tubes along the b axis.