Herbicidal compositions containing and method using phosphonoalkanoic acids, esters and salts thereof
申请人:PHILIP A. HUNT CHEMICAL CORPORATION
公开号:EP0080889A1
公开(公告)日:1983-06-08
The present invention relates to herbicidal compositions and a herbicidal method which include or use a compound of the formula:
wherein R1, R2 and R3 are each selected independently from H, lower alkyl, substituted lower alkyl, aryl, substituted aryl, ammonium, mono-, di- and tri- lower alkyl-ammonium, arylammonium, alkali metal and alkaline earth metal cations; and for each CR4R5 group, R4 is selected independently from H, lower alkyl, substituted lower alkyl, aryl, substituted aryl, halogen, mono-, and di- lower alkylamino, amino, lower alkoxy, and hydroxy, and R5 is H, or R5 is selected independently from H, lower alkyl, substituted lower alkyl and halogen, when R4 is lower alkyl, substituted lower alkyl or halogen; and a, b, c, and d are each selected independently from 0, 1, 2, 3, 4, 5, 6 and 7, provided that: 1≦ a + d(b + c) ≦ 7.
本发明涉及除草组合物和除草方法,其中包括或使用式中的化合物:
其中R1、R2和R3各自独立地选自H、低级烷基、取代的低级烷基、芳基、取代的芳基、铵、单低级烷基铵、二低级烷基铵和三低级烷基铵、芳基铵、碱金属和碱土金属阳离子;对于每个 CR4R5 基团,R4 独立选自 H、低级烷基、取代的低级烷基、芳基、取代的芳基、卤素、单和双低级烷基氨基、氨基、低级烷氧基和羟基,且 R5 为 H,或者当 R4 为低级烷基、取代的低级烷基或卤素时,R5 独立选自 H、低级烷基、取代的低级烷基和卤素;且 a、b、c 和 d 各自独立选自 0、1、2、3、4、5、6 和 7,条件是:1≦ a + d(b + c) ≦ 7。