Nucleophilic activation of the sulfur S8 cyclic form as a green chemistry tool

The review summarizes data on reactions with participation of the elemental cyclic form of sulfur S 8 , the key step of which is activation the eight-membered cycle S 8 by its opening under the action of various nucleophiles. This approach of involving sulfur in synthetic processes is promising from the point of view of green chemistry, as it is an alternative to the energy-intensive method of thermal treatment with the formation of sulfur diradicals. Special attention is paid to the creation of reactive systems by the reaction of elemental sulfur with dimethyl phosphate ionic liquids.