Patent ID: 8993759
Filing Date: 2015-03-31
Classification: C07D

Abstract:
1. A method of making a cyclic polyamine-containing product mixture comprising the steps of: (a) providing a reaction composition comprising one or more nitrogen-containing compounds having a binary component that has at least two non-tertiary amine groups separated from one another by a binary carbon atom spacing (C2 spacing) and, a second component comprising a second nitrogen-containing compound having (i) at least two non-tertiary amine groups separated from one another by a ternary carbon atom spacing (C3 spacing), (ii) at least two nitrile functionalities separated by a unitary carbon atom spacing (C1 spacing), (iii) at least one nitrile functionality and one non-tertiary amine functionality separated from one another by a binary carbon atom spacing (C2 spacing), or (iv) a combination thereof; and (b) subjecting the reaction composition to a transamination reaction in the presence of a hydrogenation/ dehydrogenation catalyst to obtain the cyclic polyamine-containing mixture.