Di-p-anisyl telluride

With hydrazine - di-p-anisyl telluride (typical p-Anisyltellurium dichloride... 

This is isolated in the usual manner from di-p-anisyl telluride. It sinters at 180° C. and melts at 183° to 184° C. The crystals consist of four-sided columns, easily soluble in warm benzene, toluene, xylene or chloroform, less soluble in alcohols, carbon disulphide or carbon tetrachloride, insoluble in petroleum ether. Boiling with water for a prolonged period yields a product of which the tellurium content lies between that of the dichloride and that of the oxide. 

Di-p-anisyl telluroxide (typical procedure) Di-p-anisyl telluride (0.80 g, 2.3 mmol) and Nal04 (0.50 g, 2.3 mmol) in CHjCN/MeOH/HjO (100 mL, 1 1 1) are heated under reflux for 2 h. The mixture is then cooled, treated with HjO (100 mL) and extracted with CHClj (3X30 mL). The extracts are evaporated and the residue chromatographed on Si02 (elution with CHClj/MeOH, 9 1). The crude product is recrystallized from benzene (0.26 g (22%) m.p. 189-191°C). 

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