Process for the preparation of amino compounds containing an aromatic ring by using a shell-type catalyst

摘要

An aromatic dinitrile compound is hydrogenated in an amide solvent in the presence of a solid catalyst and in the absence of ammonia to produce an aromatic ring-containing amino compound by reducing at least one cyano group to aminomethyl group. The solid catalyst is a supported palladium catalyst in which palladium is substantially present on the outer surface of carrier and in a surface layer within a depth of 200 µm from the outer surface. Using such a solid catalyst, the aromatic dinitrile compound is efficiently hydrogenated to the aromatic ring-containing amino compound under mild conditions.