Oxidation of methyl groups in the reaction of sulfur homopolyatomic cations with acetonitrile: formation and crystal structure of the novel trithietanylium ring
Abstract
RCN (R = C6F5, Me) reacts with Sn(AsF6)2 (n = 4, 8) in liquid SO2 to give the corresponding 3,5-disubstituted-1,2,4 thiadiazoles, and also, in the MeCN case, the tricyclic trication 4 containing the trithietanylium -CSSS+ and 1,2,3-dithiazolium -CSSNCH+ rings formed by the oxidation of methyl groups by sulfur homopolyatomic cations.