Patent ID: 9221745
Filing Date: 2015-12-29
Classification: C07C,C08G

Abstract:
1. A process for synthesizing a long-chain, saturated α,ω-amino ester (acid) having from 6 to 17 carbon atoms, said process comprising a first step of cross metathesis between a first, acrylic compound chosen from acrylonitrile, acrylic acid, or an acrylic ester, and a second, monounsaturated compound comprising at least one nitrile, acid, or ester functional group, one of these compounds comprising a nitrile function and the other an acid or ester function, in the presence of a ruthenium carbene metathesis catalyst, and a second step of hydrogenation of the resulting monounsaturated nitrile-ester (acid), wherein said monounsaturated compound comprising at least one nitrile, acid, or ester functional group has been purified beforehand by thermal and/or chemical treatment.