Substitution reactions of N-phenylmercuriocycloazaheptathiane and related compounds

Abstract

The behavior of N-phenylmercuriocycloazaheptathiane, (PhHgN)S₇(I), with hydrogen chloride and with various covalent halides of the elements of periodic Groups 3–6 is described. In some cases reaction occurs with formation of (NS₇) derivatives of the halides. With iodine, (I) gives mainly nitrides of the series (S₇N)₂S_x. The general pattern of reactivity of (I) have been established and its usefulness for the preparation of (NS₇) derivatives assessed. Thermodynamic and mechanistic factors responsible for reaction or non-reaction of (I) in particular cases are discussed. A few observations are also reported on the corresponding reactions of mercury derivatives of cyclo-1,4-diazahexathiane. The following new compounds are described: SO(NS₇)₂; [Ph₂P(S)N]S₆; 1,4-[Ph₂P(S)N]₂S₆; and (CONS₇)₂.