Arenetellurinyl Halides

Aryl tellurium trichlorides and tribromides are easily hydrolyzed to arenetellurinyl halides by cold water and warm water, respectively. The aryl tellurium triiodides are hydrolyzed by boiling water Phenyl tellurium triiodide was decomposed by hot water.  

4-Ethoxybenzenetellurinyl Chloride To 40 m/ of cold water is added 1.0 g (2.8 mmol) of 4-ethoxyphenyl tellurium trichloride, the mixture is stirred for 30 min, filtered, and the solid is dried over phosphorus pentoxide in a vacuum m.p. 202-225°. 

Examples of arenetellurinyl halides prepared similarly are benzenetellurinyl chloride yield 84% m.p. 280° 

4-(9 -Acridinyl)benzenetellurinyl chloride benzenetellurinyl bromide 4-methoxybenzenetellurinyl bromide 4-methoxybenzenetellurinyl iodide 4-ethoxybenzenetellurinyl iodide  

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Aryl tellurium trihalides treated with water are converted to arenetellurinyl halides. The susceptibility to hydrolysis decreases from the trichlorides to the triiodides2,3. With basic aqueous solutions (sodium carbonate, sodium hydroxide) tellurinic acids or tellurinic acid anhydrides are formed2 5. 

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