Behaviour of iprit carbonate analogues in solventless reactions

Sulfur iprit carbonate analogues have been investigated in neat conditions at atmospheric pressure, in the presence and in the absence of a catalytic amount of base. Furthermore, their reaction mechanism has been discussed in detail. In these novel reaction conditions, sulfur mustard carbonate analogues, that previously showed poor or no reactivity, remarkably undergo efficient nucleophilic substitution with several substrates.