Verfahren zur Herstellung von 4,4'-Methylen-di-(cyclohexylamin)

摘要

di(cyclohexylamine) (I) is prepared with a desired ratio of stereoisomers by hydrogenation of para, para'-methylene-dianiline (or a mixt. of stereoisomers using Ru catalysts supported on CuCO3 or a rare earth metal oxide, or an alkali modified Ru catalyst of the type described in Belg. 691,610. Preparation of polyamides by reacting of (I) with acids such as sebacic acid.