Substituted phenyl (thiono)carbamates, herbicidal compositions containing the same as active ingredient and method of controlling weeds
申请人:KURARAY CO., LTD.
公开号:EP0065372A1
公开(公告)日:1982-11-24
Substituted phenyl (thiono) carbamates capable of effectively controlling broad-leaved annual weeds and annual weeds belonging to the families Gramineae and Cyperaceae such as wild Echinochloa species, monochoria, toothcup and umbrella plant, herbicidal compositions containing these (thiono) carbamates as active ingredient and a method of controlling weeds using these (thiono) carbamates. The (thiono) carbamates are substantially non-phytotoxic to useful crop plants such as the paddy rice plant.
These (thiono) carbamates have the general formula
wherein X is an oxygen or sulfur atom or a vinylene group, 1 and m are each an integer of 1 to 4, n is an integer of 0 or 1, the heterocycle comprising the nitrogen atom, the two alkylene chains and X is 5- to 7-membered, the two alkylene chains may each be branched, Y is a halogen atom, p is an integer of 1 or 2, RI is a hydrogen atom or a lower alkyl group, R2 and R3 are the same or different and each is a hydrogen atom or a lower alkyl or phenyl group, R4 and R5 are the same or different and each is a halogen atom, and Z is an oxygen or sulfur atom.
能够有效控制阔叶一年生杂草和属于禾本科和香蒲科的一年生杂草(如野生越橘、单子叶、齿颊草和伞形科植物)的取代苯基(硫代)氨基甲酸酯类化合物、含有这些(硫代)氨基甲酸酯类化合物作为活性成分的除草组合物以及使用这些(硫代)氨基甲酸酯类化合物控制杂草的方法。这些(硫代)氨基甲酸酯对有用的作物植物(如水稻)基本上没有植物毒性。
这些(硫代)氨基甲酸酯的通式为
其中 X 是氧原子、硫原子或乙烯基,1 和 m 分别是 1 至 4 的整数,n 是 0 或 1 的整数,由氮原子、两条亚烷基链和 X 组成的杂环是 5 至 7 元的,两条亚烷基链可以是支链,Y 是卤素原子、p 是 1 或 2 的整数,RI 是氢原子或低级烷基,R2 和 R3 相同或不同且各自是氢原子或低级烷基或苯基,R4 和 R5 相同或不同且各自是卤素原子,Z 是氧原子或硫原子。