A Kinetic Study of 2-Phenethyl p-Bromobenzenesulfonate with Substituted Pyridines Under High Pressure (II)

Kinetics of the reaction of 2-phenethyl p-bromobenzenesulfonate with substituted pyridines in acetonitrile were investigated by an electric conductivity method at 1-2000 bars and . The rates of these reactions were increased with raising temperatures, pressures and by changing electron-donating substitutents in pyridine. When raising pressure the Hammett reaction parameter and Bronsted values were increased, and isokinetic temperature observed from isokinetic relations hip between and TEX>${\Delta}S^{\neq}$ was decreased. These results indicate that the characters were increased with raising pressure.