Process for preparing saturated amino acids or saturated amino esters comprising a metathesis step
US9096490B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Sep 29, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J31/2273
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The subject matter of the invention is a process for synthesizing a saturated long-chain α,ω-amino ester (acid) obtained in a first step by cross-metathesis between an acrylic first compound and a monounsaturated second compound comprising at least one nitrile, acid or ester trivalent function, 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 in a second step by hydrogenation of the monounsaturated nitrile ester (acid) obtained in the presence of the metathesis catalyst of the preceding stop, acting as a hydrogenation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.