2-Amino-4-Phosphonyl-butanoate derivates and preparation of 2-amino-4-phosphinyl butanoic acids
申请人:Monsanto Company
公开号:EP0265412A2
公开(公告)日:1988-04-27
Phosphinylbutanoic acids, such as phosphinothricin, can be prepared by reacting racemic 4-halo-2-phthalimidobutyrates with a tricoordinate phosphorus compound represented by the formula:
R¹ - P - (R²)₂
wherein R¹ is methyl or ethyl, and R² is selected from the group consisting of alkoxy having from one to six carbon atoms, aryloxy, and trialkylsilyloxy groups having from one to twelve carbon atoms, to form an intermediate compound; and hydrolyzing the intermediate compound to form the phosphinylbutanoic acids.
外消旋 4-卤代-2-邻苯二甲酰亚胺丁酸与三配位磷化合物反应,可制备膦酰基丁酸,如膦酰三嗪:
R¹ - P - (R²)₂
其中 R¹ 为甲基或乙基,R² 选自具有 1 至 6 个碳原子的烷氧基、芳氧基和具有 1 至 12 个碳原子的三烷基硅氧基所组成的组,形成中间化合物;水解中间化合物形成膦酰丁酸。