申请人:Stauffer Chemical Company
公开号:US04548758A1
公开(公告)日:1985-10-22
A process for preparing phosphonomethylated amino acids comprising phosphonomethylating an 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. The N-sulfonylglycine derivative can be prepared by reacting a sulfonic acid derivative with a haloacetic acid.
一种制备磷酸甲基化氨基酸的方法,包括使用甲醛和磷源对N-磺酰基甘氨酸衍生物进行磷酸甲基化,以获得磷酸甲基化的N-磺酰基甘氨酸衍生物,然后水解成相应的磷酸甲基化氨基酸,例如草甘膦或酸衍生物。 N-磺酰基甘氨酸衍生物可以通过将磺酸衍生物与卤代醋酸反应来制备。