Method of preparing amino carboxylic acids
US6153753A · kind A · utility
9Cited by
18References
88Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of an N-acyl amino carboxylic acid by means of a carboxymethylation reaction. In this reaction, a reaction mixture is formed which contains a base pair, carbon monoxide, hydrogen and an aldehyde with the base pair comprising a carbamoyl compound and a carboxymethylation catalyst precursor. In a preferred embodiment, the carbamoyl compound and aldehyde are selected to yield an N-acyl amino carboxylic acid which is readily converted to N-(phosphonomethyl)glycine, or a salt or ester thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.