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.
本发明涉及一种新的二苯醚,其一般式为:##STR1## 其中X是氢原子、卤素原子、硝基、1-6个碳原子的可选卤代烷基、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CH或CCl的基团;Z是氢原子、卤素原子、硝基、1-4个碳原子的可选卤代烷基或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## 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、两个烷基分别具有1-4个碳原子的二烷基氨基基团、具有1-4个碳原子的烷基,或R.sub.5和R.sub.6与它们所连接的氮原子一起可以形成一个杂环环,该杂环环可以包括第二个杂原子,所述第二个杂原子选自O、S或N;具有以下限制条件:X和Z不同时为氢原子或硝基;如果A是OR.sub.4的基团,则R.sub.1不是烷基。该化合物具有除草活性。经过制剂处理后,这些化合物可以在每公顷0.01至5千克活性物质的剂量下用于控制不良植物或用于农业和园艺作物的叶片脱水。