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    • 7. 发明授权
    • Herbicidally active .alpha.-(4-phenoxyphenoxy)propionic acid alkoxyalkyl
amides, herbicidal compositions containing them and their use
    • 除草活性α-(4-苯氧基苯氧基)丙酸烷氧基烷基酰胺,含有它们的除草组合物及其用途
    • US4243410A
    • 1981-01-06
    • US1515
    • 1979-01-08
    • Beat BohnerOtto Rohr
    • Beat BohnerOtto Rohr
    • A01N39/02C07C67/00C07C231/00C07C231/02C07C231/12C07C235/20A01N37/18C07C103/178
    • A01N39/02
    • The present invention relates to novel herbicidally active 4-(p-trifluoromethylphenoxy)-.alpha.-phenoxypropionic acid alkoxyalkyl amides, processes for their manufacture and also herbicidal compositions which contain them. The preferred utility of the novel compounds is the selective control of monocotyledonous weeds.The novel compounds have the general formula I ##STR1## wherein "alkylene" represents a straight or branched saturated hydrocarbon chain of 1 to 4 carbon atoms and R represents an alkyl radical of 1 to 4 carbon atoms.The novel compounds are obtained by reacting a halide or lower alkyl ester of 4-(p-trifluoromethylphenoxy)-.alpha.-phenoxypropionic acid with an alkoxyalkyl amineH.sub.2 N-alkylene-O-Ror by reacting a hydroxydiphenyl ether ##STR2## wherein Y is hydrogen or a cation, with an .alpha.-halopropionic acid alkoxyalkyl amide of the formula ##STR3## in the presence of an acid acceptor. Preferred compounds of the formula I are an N-(2-methoxy)-ethylamide and N-(3-methoxy)-propyl-(2)-amide.
    • 本发明涉及新颖的除草活性4-(对三氟甲基苯氧基)-α-苯氧基丙酸烷氧基烷基酰胺,其制备方法以及含有它们的除草组合物。 新化合物的优选用途是单子叶杂草的选择性控制。 新化合物具有通式I(I),其中“亚烷基”表示1至4个碳原子的直链或支链饱和烃链,R表示1至4个碳原子的烷基。 通过使4-(对三氟甲基苯氧基)-α-苯氧基丙酸的卤代物或低级烷基酯与烷氧基烷基胺H 2 N-亚烷基-OR反应或通过羟基二苯基醚(IMAGE)与Y是氢或 阳离子,在酸受体的存在下与式“IMAGE”的α-卤代丙酸烷氧基烷基酰胺反应。 优选的式I化合物是N-(2-甲氧基) - 乙基酰胺和N-(3-甲氧基) - 丙基 - (2) - 酰胺。