Further Investigation of the Solvolytic Reactivity of Nortricyclyl, Dehydronorbornyl and Norbornyl Halides

In a previous paper, we reported solvolytic reactivities in 80% ethanol-20% water (by volume) of nortricyclyl (I), endo-dehydronorbornyl (II), exo-dehydronorbornyl (III), endo-norbornyl (IV) and exo-norbornyl (V) halides. In subsequent publications, it was shown that the ratios of the reactivities of the exo-compounds II and IV to those of the exo-compounds III and V are much greater with the p-bromobenzenesulfonates than reported for the corresponding halides.