organic compounds
Open access
In the title compound, C16H8F6N2, the dihedral angle between the pyrazole and difluorobenzene rings is 50.30 (13)°, while those between the pyrazole and fluorobenzene rings and between the difluorobenzene and fluorobenzene rings are 38.56 (13) and 53.50 (11)°, respectively. Aromatic π–π stacking interactions between adjacent difluorobenzene rings [centroid–centroid separation = 3.6082 (11) Å] link the molecules into dimers parallel to [21-2].
organic compounds
Open access
The title compound, C10H9NO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.027 Å) and the conformation across the C=N bond is syn. Further, the O atom of the benzofuran ring is syn to the CH3 group in the side chain. In the crystal, molecules are linked into C(3) chains propagating in [010] by O—HN hydrogen bonds.
organic compounds
Open access
In the title compound, C10H9NO3, the dihedral angle between the benzofuran ring system (r.m.s. deviation for the non-H atoms = 0.009 Å) and the –C—C(O)—N– segment is 83.76 (1)°. In the crystal, molecules are linked by N—HO and O—HO hydrogen bonds, generating (001) sheets, which feature C(4) and C(10) chains.