Sulfenyl chloride

A sulfenyl chloride is a functional group with the connectivity R–S–Cl, where R is alkyl or aryl. Sulfenyl chlorides are reactive compounds that behave as sources of RS. They are used in the formation of RS–N and RS–O bonds. According to IUPAC nomenclature they are named as alkyl thiohypochlorites, i.e. esters of thiohypochlorous acid.