Multi-l,2,3,5-dithiadiazolyl radicals

The preparation of 1,2,3,5-dithiadiazolyl radicals by rearrangement of the isomeric 1,3,2,4-dithiadiazolyl radicals in solution [86CC140 87CC69 92JCS(D)1277] will be described more fully in Section XXI.A.l. In the case of some multi-l,2,3,5-dithiadiazolyl radicals, this reaction occurs in the solid state on thermolysis (Section XXIII.G.3). However, this route is not a common preparative technique, since these radicals are more conveniently prepared by direct reduction of 2+ salts, as described in Section VII.B. 

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