Dihydroxy Phenylselenonium p-Toluenesulfonate; Preparation and Use in the Recycling of Selenium Reagents

Abstract

Dihydroxy phenylselenonium p-toluenesulfonate is prepared by oxidation of diphenyl diselenide with hydrogen peroxide in the presence of p-toluenesulfonic acid. The process which is carried out as a titration has been applied as the key step in a preparation of very pure diphenyl diselenide and in the recycling of benzeneseleninic acid.