FIELD: chemistry.
SUBSTANCE: described are 2,6-substituted pyridine-3-carbonyl derivatives of formula (I) 
, in which A stands for alkandiyl, is necessary disrupted by oxygen; X stands for halogen, alkylsulfonyl with 1-6 carbon atoms; Y stands for heterocycle and, if necessary, heterocycle can contain SO2-group or oxo-group (C=O), possibly substituted by alkyl, alkoxy, alkylthio with 1-6 carbon atoms in alkyl groups; Z stands for group of formula: 
or 
. Also described are intermediate derivatives of formulas (II) 
and (IV) 
.
EFFECT: extension of range of substituted pyridylketones with herbicidal activity.
3 cl, 3 tbl, 49 ex
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