Solvolysis of Sulphonyl Halides. II. The Alcoholysis of Aromatic Sulphonyl Chlorides in Ethanol-Acetone and Methanol-Acetone

Abstract

The solvolysis of aromatic sulphonyl chlorides in methanol-acetone and ethanol-acetone shows only small, irregular effects due to para-substituents because the experimental temperature range is close to the isokinetic temperature. The modification of reaction conditions in S_N2 substitutions, so that the isokinetic condition is brought into the experimental temperature range, is discussed. Rates for methanolysis are lower than those for hydrolysis and are about four times the rates for the corresponding ethanolysis reactions.