Selective Hydrogenation. II. <i>m</i>-Dinitrobenzene To <i>m</i>-Nitroaniliine Using Palladium on Carbon As Catalyst

Abstract

In the present work m -dinitrobenzene ( m -DNB) was hydrogenated to m- nitroaniline (m -NA) using palladium on carbon as catalyst. The reaction conditions were standardized to obtain m -NA with high selectivity. It was possible to obtain m -NA with 95% selectivity at 90% conversion and formation of m- phenylenediamine (m -PD) was restricted using suitable conditions. Kinetic studies of the reaction at different initial concentrations of substrate, catalyst loading, temperature, as well as pressure, were studied.