Reversible cyclodimerization of cyclic (alkyl)(amino)carbene–carbon disulfide adduct

Abstract

The cyclic (alkyl)(amino)carbene–carbon disulfide adduct undergoes thermally induced cyclodimerization to a 1,2,4,5-tetrathiane and quantitatively dissociates back to the monomer under light irradiation. This stimulus-driven, reagent-free, and reversible bond formation and cleavage contrasts with the conventional dynamic behavior of S–S bonds.