| 摘要 |
A process for preparing phosphonomethylated amino acids comprising reacting a glycine derivative with a halosulfonic acid to form a N-sulfonylglycine derivative, then phosphonomethylating the N-sulfonylglycine derivative with formaldehyde and a phosphorus source to obtain a phosphonomethylated N-sulfonylglycine derivative which is then hydrolyzed to the corresponding phosphonomethylated amino acid, e.g. glyphosate or the acid derivative.
|
