ChemInform Abstract: Reduction of N‐Sulfonyltellurium Imines by Diphenyl Ditelluride.

Abstract

A 3:1 molar mixture of the tellurium imines (I) and diphenyl ditelluride (II) reacts to give a separable mixture of the diaryl tellurides (III), the sulfonamides (IV) and the N,N‐bis(phenyltellurenyl)sulfonamides (V).

Reactions of N‐sulfonyldiarylchalcogenimides with diaryl ditellurides

“…N-p-Tosyldiaryltellurimides and diaryl telluroxides possess very similar chemical properties. This is particularly true for the reactions proceeding via semipolar bond Te-N and Te-0 cleavage, i.e., for phosphines [11,12], thiols [4,12], thioamides [4,12], and hydroquinone and its derivatives [6,12]. Therefore, it is conceivable that Reaction 1 may develop by a mechanism like the one for Reaction 2 .…”

“…This gives rise to arenetellurinic anhydrides 5 [lo], it might be suggested that the formation of' 8 includes a homolytic cleavage of the Te-0 bond, leading to the formation of radicals. However, when the reaction was conducted in an ESR spectrometer cell, no ESR signals were observed.…”

“…In the last few years, we have studied the effect of the nature of the chalcogen atom in chalcogenimides 1 on their oxidizability in reactions with thiols [4,5], thioamides [4,5], hydroquinone, and its derivatives [6], and "To whom correspondence should be addressed.…”