With Cleavage of a Te-C Bond

Triorgano telluronium salts may lose an organic group to form diorgano tellurium compounds. This reductive elimination is influenced by the nature of the organic groups and the nature of the anion. Methyl , benzyl and 2-oxo-2-phenylethyl groups are especially easy to cleave. However, loss of phenyl iodide was observed when triphenyl telluronium iodide was heated with sodium sulfide nonahydrate . 

Of preparative importance is the conversion of aryl alkyl methyl telluronium iodides to aryl alkyl telluriums (see p.439). 

Methyl diphenyl telluronium benzoates slowly eliminated methyl benzoates . 

Tetraphenyl dimethylene ditelluronium dibromide lost ethylene on heating forming diphenyl tellurium dibromide 

de Mourn Campos, N. Petragnani, C. Thome, Tetrahedron Lett. 1960, 5. 

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Carbonyl-substituted phenyl organo tellurium compounds react with hydrohalic acids with cleavage of a Te —C bond and the formation of a stabilized aryl tellurium halide. 

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