Reaction of arenesulphonyl halides with free radicals. Part 2

Abstract

The generation of arenesulphonyl radicals by halogen abstraction from arenesulphonyl bromides and iodides is described. The relative reactivities of halogen abstraction by phenyl, 1-cyano-1-methylethyl, and benzyl radicals in benzene solution at 60° are reported. These relative reactivities are almost independent of the nature of the substituents on the benzene ring of ArSO₂Br. Sulphonyl iodides are more reactive towards phenyl radicals than bromides which in turn are more reactive than the corresponding chlorides (relactivities 602:192:1).