FIELD: chemistry.
SUBSTANCE: in novel substituted aryl ketones of formula (I) 
Z stands for groupings and A1, A2, A3, R1, R2, R3, R4, R5, R6, R7, X and Y and m are such as given in formula of invention. In substituted aryl carboxylic acid of formula (II) 
and derivative of aryl carboxylic acid of formula (III) 
A1, A2, A3, R1, R2, X and Y are such as given in item 1 of invention formula, R12 stands for allyl, which are intermediate products. Also described is means to fight undesirable plants based on formula (I) compound.
EFFECT: increased herbicidal activity.
7 cl, 3 tbl, 10 ex
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