申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0126294A1
公开(公告)日:1984-11-28
The invention relates to new diphenyl ethers of the general formula
wherein
X is a trifluoromethyl group or an alkylsulphonyl group having 1-4 carbon atoms;
R is an alkylene or alkylidene group having 1-12 carbon atoms; and
A is a bis(alkoxyethoxy)phosphinyl group having 6-12 carbon atoms, a bis(alkoxyethoxyethoxy)phosphinyl group having 10-16 carbon atoms, a carboxy group, an alkenyloxycarbonyl group having 3-6 carbon atoms, an unsubstituted aminocarbonyl group, an N-alkylaminocarbonyl group having 2-5 carbon atoms, the alkyl group of which is substituted with a dialkylamino group having 2-4 carbon atoms, a cyano group, or an alkyloxycarbonyl group having 2-5 carbon atoms, the alkyl group of which may be substituted with an alkoxy, alkylthio or alkylsulphonyl group having 1-4 carbon atoms, with an alkoxyethoxy group having 3-6 carbon atoms, with a dialkylamino group having 2-4 carbon atoms, or with a hydroxyalkyldithio group having 2-4 carbon atoms; with the provisos, that
a) when X is a trifluoromethyl group and R is an alkylene or alkylidene group having 1-6 carbon atoms, then A is a bis(alkoxyethoxy)phosphinyl group, a bis(atkoxyethoxy- ethoxy)phosphinyl group, an N-alkylaminocarbonyl group, the alkyl group of which is substituted with a dialkylamino group, or an alkyloxycarbonyl group, the alkyl group of which is substituted with a dialkylamino group or a hydroxyalkyldithio group;
(b) when X is a trifluoromethyl group and R is an alkylene or alkylidene group having 8-12 carbon atoms, then A is a carboxy group, an unsubstituted alkoxycarbonyl group, an aminocarbonyl group, or a cyano group; and
(c) when X is an alkylsulphonyl group, then R is an alkylene or alkylidene group having 1-12 carbon atoms, and A is a carboxy group, an alkenyloxycarbonyl group, an unsubstituted or substituted alkyloxycarbonyl group, an aminocarbonyl group, or a cyano group.
The compounds have a herbicidal activity. After having been processed to compositions, the compounds may be used for controlling undesired plants in agricultural and herbicultural crop in a dosage from 0.01 to 5 kg of active substance per hectare.
本发明涉及通式如下的新型二苯醚
其中
X 是具有 1-4 个碳原子的三氟甲基或烷基磺酰基;
R 是具有 1-12 个碳原子的亚烷基或亚烷基;以及
A 是具有 6-12 个碳原子的双(烷氧基乙氧基)膦酰基、具有 10-16 个碳原子的双(烷氧基乙氧基乙氧基)膦酰基、羧基、具有 3-6 个碳原子的烯氧基羰基、未取代的氨基羰基、具有 2-5 个碳原子的 N-烷基氨基羰基,其烷基被具有 2-4 个碳原子的二烷基氨基取代、氰基,或 2-5 个碳原子的烷氧羰基,其烷基可被 1-4 个碳原子的烷氧基、烷硫基或 烷磺酰基、3-6 个碳原子的烷氧基乙氧基、2-4 个碳原子的二烷基氨基或 2-4 个碳原子的羟基二硫代 烷基取代;但条件是
a) 当 X 为三氟甲基且 R 为具有 1-6 个碳原子的亚烷基或亚烷基时,则 A 为双(烷氧基乙氧基)膦酰基、双(烷氧基乙氧基-乙氧基)膦酰基、N-烷基氨基羰基(其烷基被二烷基氨基取代)或烷氧基羰基(其烷基被二烷基氨基或羟基二硫代烷基取代);
(b) 当 X 为三氟甲基且 R 为具有 8-12 个碳原子的亚烷基或亚烷基时,则 A 为羧基、未取代的烷氧羰基、氨基羰基或氰基;以及
(c) 当 X 为烷基磺酰基时,则 R 为具有 1-12 个碳原子的亚烷基或亚烷基,且 A 为羧基、烯氧羰基、未取代或取代的烷氧羰基、氨基羰基或氰基。
这些化合物具有除草活性。这些化合物经加工制成组合物后,可用于控制农作物和草本作物中的有害植物,每公顷用量为 0.01 至 5 千克活性物质。