Study on preparation and application of 3, 5, 6-trichlorine-2-pyridyloxyacetic acid derivatives
The invention provides 3, 5, 6-trichlorine-2-pyridyloxyacetic acid derivatives which are soluble in both water and oil, have herbicidal activity and are shown as general formulas (I, II), wherein X refers to oxygen atoms, nitrogen atoms and sulfur atoms; n is 0, 1, 2, 3, 4, 5,..., or (CH2)n represen...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides 3, 5, 6-trichlorine-2-pyridyloxyacetic acid derivatives which are soluble in both water and oil, have herbicidal activity and are shown as general formulas (I, II), wherein X refers to oxygen atoms, nitrogen atoms and sulfur atoms; n is 0, 1, 2, 3, 4, 5,..., or (CH2)n representing alkyl with a branched chain, wherein n refers to alkyl with a branched chain; Y refers to Cl-, Br-, F-, I-, AcO-, an acetylsalicylic acid radical, citric acid radical, salicylic acid radical, p-toluenesulfonic acid radical, hydrogen sulfate radical or other negative ions. R1 refers to alkyl with one to six carbon atoms, alkoxy with one to six carbon atoms, alkenyl with one to six carbon atoms, or aryl; R2 refers to alkyl with one to six carbon atoms, alkoxy with one to six carbon atoms, alkenyl with one to six carbon atoms or aryl groups; or R1 and R2 are selected from the structures shown in the specification. |
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