2, 4-Dinitrobenzenesulphenyl chloride (I) reacts with dialkyl, diaralkyl, and alkyl aralkyl monosulphides at ca. 20° in dry acetic acid to give alkyl or aralkyl 2, 4-dinitrophenyl disulphides together with alkyl or aralkyl chlorides as major products. The reactivity order with respect to the constitution of the sulphide is: tertiary alkyl> benzyl> secondary alkyl> primary alkyl. With unsymmetrical sulphides, the more branched alkyl group is displaced ...
