VERFAHREN ZUR HERSTELLUNG VON 4-AMINOMETHYL-CYCLOHEXANCARBONSAEURE ODER EINES MINERALSAEURESALZES DERSELBEN

摘要

prior processes for preparing 4- aminomethylcyclohexanecarboxylic acid or mineral acid salt thereof require extreme conditions or are complicated. These problems are now overcome by preparing 4-ami- nomethylcyclohexanecarboxylic acid or a mineral acid salt thereof by catalytically hydrogenating 4-hydroxyiminomethylbenzoic acid, dispersed in an aqueous medium containing a mineral acid, in the presence of a catalyst of palladium, platinum and rhodium, and if desired converting the resulting mineral acid salt to the free acid. Trans- 4-aminomethylcyclohexanecarboxylic acid, which can be employed as an anti-plasmin agent, can be obtained from the resulting acid.