Preparation of Some New Organotellurium Compounds Derived from 4,4-Dihydroxy Azobenzene

A new series of organotellurium compounds derived from 4,-4- dihydroxy azobenzen have been prepared by the reaction of 3- HgC1-4-OH-C6H3N= NC6H4-OH (A) with TeBr4 and P-CH3OC6H4TeBr3 to give (3-(P-CH3OC6H4TeBr2)- 4-OHC6H3-N=N-C6H4-OH) (B) and (3-TeBr3-4-OHC6H3N=NCH4-OH) (B-) respectively, reduction of B by sodium sulphide gave the corresponding organotellurenyl compound (C), (3-TeBr-4-OH-CH3N=N-C6H4-OH). Compound (D) (OH-C6H4-N=N-CH3-4-OH-3Te)2 has been prepared by reduction of compound B or C by hydrazine hydrate. Reduction of B gave the corresponding telluride 3-(P-CH3OCH4Te)- 4-OH-CH3N=N-C6H4-4-OH (E). All compounds have been characterized, by IR and 1H NMR spectral data and meting point was determined. The molar conductivities of the halogenated compounds (B, B-, C) in DMSO and DMF show some weak electrolytic behavior.