Abstract The preparation of the chlorosulfines RC (Cl)= S= O where R is C 6 H 5 and C 6 H 5 S, by oxidation of the corresponding thioacyl chlorides, is described. Reaction of these chlorosulfines with thiophenol and potassium thiocyanate leads to substitution of the chlorine atom giving phenylthio-and thiocyanosulfines, respectively. The displacement of the chlorine atom in chloro-phenylsulfine by the phenylthio group occurs stereospecifically: ...
