申请人:Stauffer Chemical Company
公开号:US04525311A1
公开(公告)日:1985-06-25
A method of preparing N-phosphonomethylglycine comprising reacting a compound having the structural formula R--NHCH.sub.2 CN wherein R is tertiary butyl or ##STR1## wherein Ar is an aromatic group, R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1 -C.sub.10 alkyl or an aromatic group, with formaldehyde and a phosphite to form a tertiary amine and hydrolyzing the tertiary amine in the presence of hydrochloric, hydrobromic, or hydriodic acid to yield N-phosphonomethylglycine.
制备N-磷酸甲基甘氨酸的方法包括将具有结构式R-NHCH.sub.2 CN的化合物与甲醛和磷酸酯反应,其中R为三丁基或##STR1##其中Ar为芳香族基团,R.sup.1和R.sup.2分别为氢、C.sub.1-C.sub.10烷基或芳香族基团,形成三级胺,然后在盐酸、溴酸或碘酸的存在下水解三级胺以得到N-磷酸甲基甘氨酸。