Heterocyclic ketimines, 1-(2-furanyl) ethanonehydrazincarbothioamide (L1H), 1-(2-furanyl) ethanone-hydrazincarboxamide (L2H), 1-(2-thienyl) ethanone hydrazincarbothioamide (L3H) and 1-(2-thienyl) ethanonehydrazincarboxamide (L4H), were prepared by the condensation of thiosemicarbazide and semicarbazide hydrochloride (in the presence of sodium acetate) in ethanol with the respective ketones by using microwave as well as ...