Synthesis and reactivity of acid chlorides of aliphatic Β-(chlorosulfinyl)carboxylic acids

1. A convenient general method was developed for obtaining the acid chlorides of Β-(chlorosulfinyl)carboxylic acids from Β-(acetylthio)carboxylic acids. 2. The acid chlorides of Β-(chlorosulfinyl) carboxylic acids react with water and amines as the acid chloride form, while with alcohols, PCl3, and PCl5 they apparently react via the tautomeric form of the cyclic dichlorosulfuran.