Substituted propyl phosphonic acid derivatives, their use as herbicides, herbicidal compositions containing them, and methods of preparing them
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0078613A1
公开(公告)日:1983-05-11
Phosphonic acid derivatives of the formula (I)
wherein R1 and R2 are each hydrogen, a cation or an optionally substituted alkyl, alicyclic, or phenyl radical; R3 is hydrogen or alkyl; and R4 may be H, OH, F, NH2, optionally substituted alkoxy, alkenyloxy or alkynyloxy, or a range of specified acyloxy radicals, or R3 and R4 with the adjacent carbon atom may form a keto group or a functional derivative thereof. The compounds are useful as herbicides.
式(I)的膦酸衍生物,其中 R1 和 R2 分别为氢、阳离子或任选取代的烷基、脂环基或苯基;R3 为氢或烷基;R4 可以是 H、OH、F、NH2、任选取代的烷氧基、烯氧基或炔氧基或一系列特定的酰氧基,或者 R3 和 R4 与相邻碳原子可形成酮基或其官能衍生物。 这些化合物可用作除草剂。