Reduction of organic sulfonic acids, sodium sulfonates, and sulfonic esters to the corresponding disulfides with polyphosphoric acid derivatives, potassium iodide and …

S Oae, H Togo

Index: Oae; Togo Bulletin of the Chemical Society of Japan, 1983 , vol. 56, # 12 p. 3813 - 3817

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Citation Number: 11

Abstract

Organic sulfonic acids, sodium sulfonates, and alkyl sulfonates were readily reduced to the corresponding disulfides in moderate yields upon treatment with a mixture of a polyphosphoric acid derivative and iodide. In these reactions, formation of mixed anhydrides each having a P–O–S linkage is the key step, and subsequent attack of iodide on the sulfur atom gives the corresponding sulfonyl iodides which are reduced further exothermally to ...