Reactions with Diazonium Salts, Organic Halides, and Carboxylic Acids

Reactions with Diazonium Salts, Organic Halides, and Carboxylic Acids 

Aromatic and aliphatic ditellurium compounds are converted to unsymmetrical diorgano tellurium derivatives in reactions with arenediazonium salts .  

When the reaction mixtures contain copper(II) halides or copper(ll) acetate and hydrogen halide, the diaryl ditellurium compounds are oxidized to the corresponding tellurium dihalides .  

Excess methyl iodide refluxed with diaryl ditellurium derivatives produced aryl methyl tellurium diiodide and aryl dimethyl telluronium iodides. 

Diaryl ditellurium compounds disproportionate in aqueous sodium hydroxide solution to arenetellurolate and arenetellurinate. In the presence of an alkyl halide, the arenetellurolate is alkylated to aryl alkyl tellurium compound. This reaction sequence that converts half of the diaryl ditellurium molecule into desired product gives the aryl alkyl tellurium compounds in approximately 60% yield . 

---