Mild and effective removal of dithioketal protecting groups by triarylamine cation radicals as homogeneous electron transfer agents

M Platen, E Steckhan

Index: Platen, Martin; Steckhan, Eberhard Chemische Berichte, 1984 , vol. 117, # 5 p. 1679 - 1694

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Citation Number: 47

Abstract

Abstract 1, 3-Dithianes 2 can effectively be converted in to the parent carbonyl compounds 7 by a very mild oxidative procedure using tri-p-tolylammoniumyl (1a+.) or tris (4- bromophenyl) ammoniumyl (1b+.) as homogeneous electron transfer agents. The yields are equally good for the cleavage by stoichiometric amounts of the triarylammoniumyl hexachloroantimonates as well as for the indirect electrochemical procedure using ...