The reactions of hexachloroacetone (HCA) with aliphatic diamines gave bis(trichloroacetamide) as white solids at room temperature in high yield. The amide compounds have been characterized by FT-NMR and FT-IR. The molecular structure of N,N'-ethylenebis(trichloroacetamide) has been also determined by X-ray diffraction confirming that the ethylene group is bridging two trichloroacetamido units.