Kinetic studies of the reactions of phenacyl p-bromobenzenesulfonate (brosylate) with substituted pyridines at 1–1500 atm and 35, 45, and 55° C in acetonitrile were carried out by electric conductivity method. From the activation volumes and activation entropies, it can be deduced that phenacyl brosylate has SN2 character in the transition state like other Menschutkin reactions of benzyl benzenesulfonate, 2-phenylethyl arenesulfonates, ethyl ...
