Study on the influence of substituents upon the hydrogenation of nitrobenzene using a polymer-supported palladium-imidazole complex catalyst

Hydrogenation of various nitroarenes by a polymer-supported palladium-imidazole complex at ambient conditions was investigated. The effect of various substituents upon the rate of hydrogenation of nitrobenzene was studied. The rate of para-substituted nitrobenzene hydrogenation was related to the corresponding Hammett substituent constant. The kinetics of hydrogenation and the reusability of the catalyst were also studied.