Thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine and their herbicidal use
申请人:MONSANTO COMPANY
公开号:EP0008158A1
公开(公告)日:1980-02-20
This disclosure relates to thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine esters, to herbicidal compositions containing same and to the herbicidal use thereof. The thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine esters are useful as herbicides.
The novel N-trifluoroacetyl-N-phosphonomethyl-glycinate thio derivatives of this invention are those having the formula
wherein R is an alkyl group containing from 1 to 10 carbon atoms, a chloro lower alkyl group containing from 1 to 4 carbon atoms and 1 to 3 chlorine groups, a lower alkoxy lower alkyl group containing from 3 to 6 carbon atoms or an alkoxyalkoxyalkyl group containing from 5 to 9 carbon atoms and R' is a member of the group consisting of lower alkylthio. lower alkenylthio, benzylthio, phenylthio, or substituted phenylthio wherein the phenyl group contains 1 to 2 substituents selected from the group consisting of halo, lower alkyl and lower alkoxy.
本公开涉及 N-三氟乙酰基-N-膦酰甲基甘氨酸酯的硫代衍生物、含有这些衍生物的除草组合物及其除草用途。N- 三氟乙酰基-N-膦酰甲基甘氨酸酯的硫代衍生物可用作除草剂。
本发明的新型 N-三氟乙酰基-N-膦酰甲基甘氨酸硫代衍生物是具有以下式子的衍生物
其中 R 是含 1 至 10 个碳原子的烷基、含 1 至 4 个碳原子和 1 至 3 个氯基团的氯代低 级烷基、含 3 至 6 个碳原子的低级烷氧基低级烷基或含 5 至 9 个碳原子的烷氧基烷基,而 R' 是由低级烷硫基、低级烯硫基、苄硫基、苯硫基或取代苯硫基组成的组的成员,其中苯基含有 1 至 2 个选自卤代、低级烷基和低级烷氧基组成的组的取代基。