From Diaryl Ditellurium Compounds and Thionyl or Sulfuryl Chloride

From Diaryl Ditellurium Compounds and Thionyl or Sulfuryl Chloride 

The preparation of alkyl and aryl tellurium trichlorides from ditellurium compounds is more conveniently carried out with thionyl chloride or sulfuryl chloride instead of gaseous chlorine. 

Sulfuryl chloride and diphenyl ditellurium in chloroform gave phenyl tellurium trichloride in 80% yields 

Sulfuryl chloride was successfully used to convert bis[2-alkoxyalkyl] ditellurium compounds to 2-alkoxyalkyl tellurium trichlorides.  

2-Methoxy-3-phenylpropyl Tellurium Trichloride A stirred solution of 0.50 g (1.81 mmol) bis [2-methoxy-3-phenylpropyl] ditellurium in a mixture of 2 ml carbon tetrachloride and 6 ml hexane is cooled to 0°. 0.37 g (2.74 mmol) sulfuryl chloride dissolved in 2 ml hexane are added. After cooling in a freezer, the product was isolated yield 91% m.p. 119° 

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