Reaction rates of N-acetoacetyl, N-cyanoacetyl, and N-phenylacetyl derivatives of o- and p-nitrobenzenesulfonamide and 2- and 4-pyridinesulfonamide 1-oxides with alkali were compared. Rate coefficients, heat constants of activation, and entropies of activation were calculated. Pyridinesulfonamide 1-oxide derivatives reacted faster than nitrobenzene derivatives and reactivities of N-phenylacetyl derivatives were smallest.
