Heterocyclic compounds, their preparation, compositions containing them and method of controlling unwanted plant growth
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0107216A1
公开(公告)日:1984-05-02
Certain 4-(benz(otri/imid)azol-1-yl)phenoxyalkanoic acids, esters and salts of formula
wherein Z is nitrogen or CR3; X is halogen and n is 0, 1 or 2, or n is 1 and X is cyano, methyl, halomethyl, methoxy, halomethoxy, methylthio, halomethylthio, methylsulfinyl, halomethylsulfinyl, methylsulfonyl or halomethylsulfonyl; R is methyl, ethyl or methoxymethyl; m is 0, 1 or 2; R1 is hydrogen, alkyl of one to four carbon atoms, an alkali metal or ammonium (N(R2)4)ion, wherein each R2 independently is hydrogen or alkyl of one to six carbon atoms; and R3 is hydrogen, methyl or ethyl; are useful as herbicides.
某些式中的 4-(苯(otri/imid)偶氮-1-基)苯氧基烷酸、酯和盐
其中 Z 为氮或 CR3;X 为卤素且 n 为 0、1 或 2,或 n 为 1 且 X 为氰基、甲基、卤代甲基、甲氧基、卤代甲氧基、甲硫基、卤代甲硫基、甲亚磺酰基、卤代甲亚磺酰基、甲磺酰基或卤代甲磺酰基;R 为甲基、乙基或甲氧基甲基;m 是 0、1 或 2;R1 是氢、1 至 4 个碳原子的烷基、碱金属或铵(N(R2)4)离子,其中每个 R2 独立地是氢或 1 至 6 个碳原子的烷基;R3 是氢、甲基或乙基;可用作除草剂。