Chromatographic separation and determination of some cations by unsuppressed conductivity and indirect photometric methods. +CD
إنجليزية
The scheme of this work involves synthesis of new five, six and seven membered heterocyclic rings derived from p-Toluic acid [1].This work is divided into four parts: -Part one: - Include synthesizing phthalazin, pyridazin-dione and oxadiazole derivatives [4], [5], [6] and [7] derived from 4-methyl benzoic hydrazide [3] which was prepared from the reaction of ethyl-4-methyl benzoate [2] with hydrazine hydrate as show in scheme 1.