Acetylsulfenyl chloride

The electrophilic reagents acetylsulfenyl chloride, methanesulfenyl chloride,sulfuryl chloride or chlorine, cleave the -thiolactone ring as shown for 332 and 307. Some disulfide may be formed along with the suite nyl derivative. 

In contrast, ketenes insert into chloramines to give amides From sulfur dichloride and disulfur monochloride, respectively, the acid chloride insertion products are formed Arylsulfenyl chloridesand acetylsulfenyl chloride react similarly with ketene. 

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