Synthetical applications of activated metal catalysts. XXIV. The desulphurization of sulphones

Abstract

Diphenylsulphone has been found to be much more resistant to desulphurization than diphenylsulphoxide or diphenylsulphide. The desulphurization of benzo[b]thiophen-3-(carboxylic acid)-1,1-dioxide with Raney cobalt has been found to give benzo[b]thiophen-3-oarboxylic acid, 2-phenylpropionic acid, phenylacetic acid, and a small amount of an unidentified labile acid. The results support the view that the desulphurization of sulphones proceeds via the sulphides.