Specific features of the reactivity of nitrothiolene 1,1-dioxides

The review deals with the chemical properties of 2-nitro-2- and 4-nitro-3-t hiolene 1,1-dioxides. The former exhibit increased tendency to nucleophilic addition, and the latter are highly active in different reactions: nitroal lyl-nitrovinyl isomerization, reactions with nucleophilic, electrophilic, a nd radical reagents, as well as cheletropic trasformations. The specific re activity of 4-nitro-3-thiolene 1,1-dioxides characterize them as unique uns aturated nitro compounds having no linear or carbocyclic analogs.