FIELD: agriculture.
SUBSTANCE: invention relates to the agricultural industry, namely to a pyridazine derivative of the formula 1 or its salts. In the formula 1, R1 is H, C1-C7 alkyl, C4-C7 alkyl cycloalkyl, C3-C7 cycloalkyl, C4-C7 cycloalkyl alkyl; W is O; A is selected from a group including A-1, A-2, A-3, A-4; G is G1; G1 is H, -C(=O)R7, -CO2R8, or C1-C4 alkyl, C3-C6 cycloalkyl or C4-C7 cycloalkyl alkyl; R2 is H, halogen, C1-C7 alkyl, C4-C7 alkyl cycloalkyl, C3-C7 cycloalkyl or C4-C7 cycloalkyl alkyl; each X1, X2, X3 independently is N or CR3; each X4, X5 and X6 independently is N or CR4; each X7, X8, X9 and X10 independently is N or CR5; Y1 and Y2 independently are O, S or NR6; Y4 is S; R3 is H, halogen, C1-C5 alkyl, C3-C5 cycloalkyl, C4-C5 cycloalkyl alkyl, C1-C5 halogen alkyl or C1-C5 alkoxy group; R4 is H, halogen , C1-C5 alkyl, C3-C5 cycloalkyl, C4-C5 cycloalkyl alkyl; R5 is H, C1-C5 alkyl, C3-C5 cycloalkyl, C4-C5 cycloalkyl alkyl; R6 is H, C1-C7 alkyl; R7 is C1-C7 alkyl, C3-C7 cycloalkyl, C4-C7 cycloalkyl alkyl or phenyl; R8 is C1-C7 alkyl, C3-C7 cycloalkyl or C4-C7 cycloalkyl alkyl. The invention also relates to a herbicidal composition and a method for combating unwanted vegetation.
EFFECT: compound of the formula 1 having herbicidal activity.
10 cl, 33 tbl, 15 ex
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