Diphenyl silver perchlorate

Diphenyl tellurium dichloride and silver perchlorate in dichloromethane were stirred for one hour. The precipitated silver chloride was removed by filtration to give a solution of diphenyl tellurium diperchlorate. This compound was not isolated but treated with O- or N-donors such as pyridine and pyridine N-oxides. The 1 1 adducts were obtained as colorless, crystalline substances in almost quantitative yields. Bis[4-methoxyphenyl] tellurium dichloride and telluracyclopentane 7e-diiodide were similarly converted to the perchlorates2. 

Solutions of diphenyl tellurium diperchlorate1, bis[4-methoxyphenyl] tellurium diperchlorate1, and telluracyclopentane diperchlorate3 were prepared by treating the tellurium dichlorides or diiodides in dichloromethane with silver perchlorate. The tellurium diperchlorates were not isolated but reacted with N-,0-, or. S-donor molecules to give 1 1 or 1 2 complexes. 

Diphenyl Tellurium Diperchlorate/Dimethyl Sulfoxide Complex1 A mixture of 0.70 g (2 mmol) diphenyl tellurium dichloride, 0.83 g (4 mmol) silver perchlorate and 30 ml dichloromethane is stirred at 20° for 1 h. The precipitated silver chloride is removed by filtration. The filtrate is mixed with a solution of 0.15 g (2 mmol) dimethyl sulfoxide in 10 m/ dichloromethane. The mixture is refluxed for 5h. The solvent is distilled from the mixture. The residue is treated with petroleum ether (40 - 60°). The resulting white solid is recrystallized from petroleum ether (40-60°)/dichloromethane (3 1) and then dried under reduced pressure 95% yield m.p. 140°. 

Silver perchlorate Disacdiarides from 2,3-diphenyl-2-cyclopropen-l-yl ethers... 

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