By chlorinolysis of diorganyl ditellurides

Dialkyl and diaryl ditellurides are easily converted into the corresponding tellurium trichlorides by means of the fission of the Te-Te bond by a chlorinating reagent. This route is very suitable for the preparation of the alkyl derivatives in view of the easy accessibility of dialkyl ditellurides via the alkylation of sodium ditelluride (see Section 3.2.1). [Pg.51]

The chlorinolysis can be effected by employing chlorine in solvents (chloroform, carbon tetrachloride, dichloromethane and benzene) or, more conveniently, avoiding the use of gaseous chlorine, by treatment with thionyl chloride or sulphuryl chloride. [Pg.51]

Organyltellurium trichlorides (general procedure) A solution of the ditelluride in benzene or CCI4 is treated dropwise at 0°C with a slight excess of SO2CI2 in the same solvent. The crude precipitate of the trichloride is separated by filtration. The yield is close to 100%. [Pg.51]

3 Organyltellurium tribromides and triiodides by halogenolysis of the corresponding ditellurides [Pg.51]

Like chlorinolysis, the brominolysis and iodinolysis of diorganyl ditellurides offer a facile route to tellurium tribromides and triiodides. [Pg.51]

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