Tellurium Hydroxide Sulfonates

Diaryl tellurium hydroxide perchlorates were obtained from equimolar amounts of diaryl tellurium oxides and perchloric acid  

Bis[4-mcthoxyphenyl] Tellurium Hydroxide Perchlorate 3.58 g (10 mmol) of bis[4-methoxyphenyl] tellurium oxide is suspended in 7 m/ of freshly distilled triethyl orthoformate. ml 2 mmol) of 70% perchloric acid is added dropwise to the stirred suspension, whereupon the tellurium oxide dissolves. The mixture is stirred for 15 min and then 150 m/ of dry diethyl ether are added with continued stirring. The solvent is decanted from the colorless oil which is triturated with fresh portions of dry diethyl ether until it crystallizes. The crystals are filtered, washed with dry diethyl ether, dried, and recrystallized from acetic acid/diethyl ether yield 3.4 g (74%) m.p. 219°. 

Similarly obtained wa.s diphenyl tellurium hydroxide perchlorate (m.p. 253°) in 64% yield.  

Diaryl tellurium hydroxide bromocamphorsulfonates were prepared by hydrolysis of the diaryl tellurium disulfonates with cold water  

Irgolic Organo Tellurium Compounds with 2 Te —C Bonds or 1 Te = C Bond 

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