申请人:Duphar International Research B.V.
公开号:US04550205A1
公开(公告)日:1985-10-29
The invention relates to new diphenyl ethers of the general formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a nitro group, an optionally halogenated alkyl, alkoxy or alkylthio group having 1-6 carbon atoms, or an alkanoyl group having 1-4 carbon atoms; Y is a nitrogen atom or a group of the formula CH or CCl; Z is a hydrogen atom, a halogen atom, a nitro group, an optionally halogenated alkyl group having 1-4 carbon atoms, or an alkanoyl group having 1-4 carbon atoms; n is 0-2; R.sub.1 is a hydrogen atom, or an alkyl or alkanoyl group having 1-4 carbon atoms; R.sub.2 and R.sub.3 are equal or different and represent hydrogen atoms or alkyl groups having 1-4 carbon atoms; and A is a group of the general formula ##STR2## wherein R.sub.4 is a hydrogen atom, an alkyl group having 1-6 carbon atoms, or a cation of an alkali metal, alkaline earth metal or an alkylated or non-alkylated ammonium group, and R.sub.5 and R.sub.6 are equal or different and represent hydrogen atoms, dialkylamino groups wherein the alkyl groups each have 1-4 carbon atoms, alkyl groups having 1-4 carbon atoms, or wherein R.sub.5 and R.sub.6 together with the nitrogen atom to which they are bound can form a heterocyclic ring which may comprise a second hetero atom selected from O, S or N; with the provisos, that X and Z are not both hydrogen atoms or nitro groups, and that if A is a group of the formula OR.sub.4 R.sub.1 is not an alkyl group. The compounds have a herbicidal activity. After having been processed to compositions, the compounds may be used for controlling undesired plants or for leaf-desiccation in agricultural and horticultural crop in a dosage from 0.01 to 5 kg of active substance per hectare.
本发明涉及新的二苯醚化合物,其一般式为:##STR1## 其中,X是氢原子、卤素原子、硝基、1-6个碳原子的选配卤代烷基、烷氧基或烷硫基,或1-4个碳原子的脂肪酰基;Y是氮原子或式为CH或CCl的基团;Z是氢原子、卤素原子、硝基、1-4个碳原子的选配卤代烷基,或1-4个碳原子的脂肪酰基;n为0-2;R.sub.1是氢原子或1-4个碳原子的烷基或脂肪酰基;R.sub.2和R.sub.3相同或不同,表示氢原子或1-4个碳原子的烷基;A是一般式##STR2## 中的基团,其中,R.sub.4是氢原子、1-6个碳原子的烷基,或碱金属、碱土金属或烷基化或非烷基化铵基的阳离子,R.sub.5和R.sub.6相同或不同,表示氢原子、烷基基团(烷基中的每个碳原子均为1-4个)的二烷基氨基基团,或R.sub.5和R.sub.6与它们连接的氮原子一起可以形成一个杂环环,该杂环环可以包括从O、S或N中选择的第二个杂原子;但须满足X和Z不同时为氢原子或硝基,若A是OR.sub.4,则R.sub.1不是烷基。这些化合物具有除草活性。将这些化合物处理成组合物后,可用于控制不良植物或在农业和园艺作物中进行叶片脱水,剂量为每公顷0.01至5千克活性物质。