Classical carbonium ions. Part IV. Absence of hydride shift in the solvolysis of 1- and 2-adamantyl toluene-p-sulphonate
Abstract
Upper limits of 0.1, 0.01, 0.15, and 0.3%, respectively, have been placed on 2→1 hydride shift in the acetolysis of 1-adamantyl toluene-p-sulphonate, 1→2 and 4→2 hydride shifts in the acetolysis of 2-adamantyl toluene-p-sulphonate, and the formation of 2,4-didehydroadamantane in the latter reaction. These hydride shifts may well not occur at all.