PYRAZOLE COMPOUNDS OR SALTS THEREOF, METHODS FOR PRODUCTION THEREOF, HERBICIDE COMPOSITIONS AND USE THEREOF Russian patent published in 2019 - IPC C07D231/20 C07D403/12 C07D403/14 C07D405/14 A01N43/56 A01P13/02 

FIELD: agriculture.

SUBSTANCE: present invention relates to pesticides, particularly relates to a pyrazole compound of formula (I) or a salt thereof, as well as to versions of the compound of formula (I), a method for production thereof, a herbicidal composition and use thereof. In formula (I) R₁ is hydrogen or C1-C4 alkyl; R₂ is C1-C3 alkyl; R₃ is -XR₃', where X is O, S or N, X and R₃' can form a ring or a linear chain, when X is O or S, R₃' is C1-C6 alkyl, C3-C6 alkoxyalkyl, C2-C6 halogenated alkyl, C3-C6 alkenyl, C3-C6 alkynyl or tetrahydrofurfuryl; when X is N, X and R₃' forms pyrazole ring, 3-methylpyrazole ring, 4-methylpyrazole ring, 3,5-dimethylpyrazole ring or 4-chlorpyrazole ring; R₄ is C1-C3 alkyl or halogen; R₅ is a pyrazole ring or a pyrazole ring substituted with one or more groups selected from C1-C3 alkyl, C1-C3 alkoxy, halogen, C1-C3 halogenated alkyl and amino.

(I).

EFFECT: disclosed pyrazole compound is an excellent herbicide with a wide range of biological activity and exceptionally good safety for crops.

17 cl, 4 tbl