“…Certain nucleophiles, such as aliphatic amines, sulfide anions, carbonates and hydroxides are able to activate sulfur under mild conditions, generating open-chain ionic polysulfide anions. 32–38 The in situ generated active species may be used under metal-free conditions to create new C–S bonds by the atom efficient sulfuration of electrophiles, e.g. CN double bonds, 39,40 isocyanides, 29,37,41–43 isothiocyanates 44 and iodonium salts.…”