Method for the preparation of imidazoles

摘要

This invention discloses an improvement in the method for preparation of imidazoles by dehydrogenation of imidazolines over a nickel catalyst comprising reacting the imidazoline over a nickel catalyst in combination with from 2 to 30 weight percent of a catalyst from the group consisting of copper, chromium or a combination of both at a temperature of 160 DEG C. to 250 DEG C. and a pressure of atmospheric to 500 psig.