FIELD: chemistry.
SUBSTANCE: group of inventions relates to the field of herbicidal compounds and includes a compound of formula (I), an herbicidal composition based on it, a method of controlling weeds and application. In formula (I), R1 is selected from the group consisting of 1-propynyl, phenyl and 5- or 6-membered heteroaryl, which contains one or two nitrogen heteroatoms, wherein said phenyl and heteroaryl are optionally substituted with one or two substituents R15; R2 is methyl, ethyl, methoxy or chlorine; R3 is selected from the group consisting of methyl, ethyl, methoxy and chlorine; m is 0 or 1; r is 0 or 1; R4x is selected from the group consisting of hydrogen, C1-C6 alkyl, hydroxyl, methoxy and halogen; R4y is selected from a group consisting of R4a, R4b and R4c, which are defined in the claims.
EFFECT: compound of formula (I), having herbicidal activity, which is used to control weeds in the place of their growth.
14 cl, 4 tbl, 3 ex
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