Properties of some disulphones: acidities, rates of ionization and bromination, and hydrogen isotope effects

Abstract

Measurements are reported of the rates of bromination and acid dissociation constants of the disulphones (EtSO₂)₂-CHMe, (MeSO₂)₂CH₂, (EtSO₂)₂CH₂, (EtSO₂)₂CHPh, and (EtSO₂)₂CHBr. For (EtSO₂)₂CHMe the order with respect to bromine is between zero and unity, and it was possible to derive both rates of ionization (and of the reaction of the anions with acids) and velocity constants for the reaction between anion and bromine or tribromide ion. For the remaining disulphones only the latter were obtained.