Preparation of diamines from aldehydes and ammonia

摘要

This invention relates to novel highly branched amines and to a process of preparing same which comprises: (1) the preparation of a vinylimine from branched aldehydes and ammonia; (2) the dimerization and intermolecular condensation of such vinylimines to cyclic diamines; and (3) hydrolysis of such cyclic diamines to other diamines.