Telluronium Perchlorate

When diphenyl methyl telluronium perchlorate and pyridine A -oxidc were refluxed in dichloromethane for five hours, the 1 1 adduct was isolated4. 

Benzotellurin and methyl iodide produce the telluronium iodide in an exothermic reaction. When the reaction is carried out in the presence of silver perchlorate, the telluronium perchlorate is isolated3. 

A telluronium salt could not be obtained from telluraxanthene and methyl iodide. However, the telluronium perchlorate was formed in high yields when silver perchlorate was added to the reaction mixture3. 

Cathodic reduction of tellurium in the presence of methyl iodide in a 1.0 M solution of sodium perchlorate in anhydrous dimethylformamide produced trimethyl telluronium iodide in 80% yield1. This reaction does not appear to proceed with other alkyl halides. 

Diphenyl tellurium kept in hexatritiobenzene in the presence of potassium tetrafluorobo-rate or perchlorate yielded diphenyl hexatritiophenyl telluronium salts5-7 in 63% yield. 

Alkoxyaryl ethoxycarbonylmethyl tellurium compounds reacted with 1,4-bis[dialkylimino]-2,3,5,6-tetrathiacyclohexane diperchlorate in acetonitrile to form as intermediates, 4-alkoxyaryl dialkyldithiocarbamato tellurium compounds that were transformed into 4-alkoxyarylbis[dithiocarbamato telluronium(II) perchlorates. ... 

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