2-(2-Methoxy­phen­yl)-4,4-dimethyl-4,5-dihydro-1,3-oxazole

In the title mol­ecule, C12H15NO2, the oxazole ring adopts an envelope conformation. Overall, the mol­ecule is approximately planar, the dihedral angle between the mean plane through all but the methyl­ene C atom of the five-membered ring and the aromatic ring being 8.6 (1)°. A weak C—H⋯O inter­action contributes to the stabilization of the crystal structure

(2E)-1-(4-Methyl­phen­yl)-3-(2,3,5-trichloro­phen­yl)prop-2-en-1-one

In the title mol­ecule, C16H11Cl3O, the dihedral angle between the two benzene rings is 33.2 (1)°. The crystal packing is stabilized by C—H⋯O hydrogen bonds

Crystal Structure of 5-Amino-1-(2,4,6-trichlorophenyl)-1H-pyrazole-4-carbonitrile

The title compound, 5-amino-1-(2,4,6-trichlorophenyl)-1H-pyrazole-4-carbonitrile, C10H5Cl3N4, crystallizes in the orthorhombic space group, Pca21, with two independent molecules (A and B) in the unit cell, and cell parameters a = 12.9035(2), b = 14.3155(2), c = 12.8187(2)Å, α = β = γ = 90.0°, Z = 8. The dihedral angle between the mean planes of the trichlorophenyl and pyrazole groups is 87.3(4)° (A) and 79.3(9)° (B), respectively. Intermolecular hydrogen bonding N-H…N interactions and crystal packing effects influence the twist angle between these two groups