organic compounds
Open access
In the title compound, C17H14N2O2, the central pyridazine ring forms dihedral angles of 47.29 (5) and 88.54 (5)° with the benzene rings, while the dihedral angle between the benzene rings is 62.68 (6)°. In the crystal, molecules are linked by two weak C—HO hydrogen bonds and three weak C—Hπ interactions.
organic compounds
Open access
In the title compound, C17H21F3N2O6S, the hexahydropyrimidine ring adopts a half-chair conformation: the mean plane formed by the ring atoms excluding the C atom bonded to the ethoxycarbonyl group has an r.m.s. deviation of 0.0427 Å and forms a dihedral angle of 66.41 (5)° with the benzene ring. The molecular conformation is stabilized by an intramolecular hydroxyl O—HOcarboxyl hydrogen bond, generating an S(6) ring. In the crystal, pairs of N—HS and N–HO hydrogen bonds give rise to the formation of two-dimensional networks lying parallel to the ab plane, which incorporate graph-set motifs R22(8) and R22(16), respectively.