From Alkane- or Arenetellurolates

Lithium methanetellurolate or lithium benzenetellurolate and chlorotrimethylsilane react at 20° in tetrahydrofuran to give his[trimethylsilyl tellurium in small yields. The main product in these reactions is the organo trimethylsilyl tellurium compound. 

Irgolic Organo-tellurium Compounds without a C,Te-Bond 

Bromomagnesium benzenetellurolate and chlorotrimethylsilane react at 20° in tetrahydro-furan to furnish bis[trimethylsilyl] tellurium in 10 to 15% yield .  

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Alkyl organo tellurium compounds, prepared from alkane- or arenetellurolates and alkyl halides, react with butyl lithium,. 9ec-butyl lithium, /ert.-butyl lithium, or phenyl lithium. The alkyl group bonded to the tellurium atom is cleaved from the tellurium and is present in solution as the alkyl lithium that can be used for further reactions. This tellurium-lithium exchange reaction is synthetically useful, whenever the alkyl halides cannot be converted to alkyl lithiums by other, more conventional halogen exchange reactions. The following exchange reactions were successfully carried out ... 

From Silicon, Phosphorus, or Arsenic Alkane- or Arenetellurolates... 

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