Abstract A series of novel 1-[(2, 6-dichloro-4-trifluoromethyl) phenyl]-3-aryl-1H-pyrazole-4- carbaldehydes 6a-i were synthesized using the Vilsmeier-Haack reagent. The structures of all the title compounds have been confirmed by elemental analysis, 1 H-NMR and 13 C- NMR and in addition, the structure of intermediate 5b was investigated by X-ray crystallography. Keywords:
