4-SUBSTITUTED PHENYLAMINE DERIVATIVES AND THEIR USE TO PROTECT CROPS AGAINST UNDESIRABLE PHYTOPATHOGENIC MICROORGANISMS Russian patent published in 2023 - IPC A01N37/52 A01N43/40 A01N43/84 C07C257/12 C07D265/30 C07D211/12 A01P3/00 

FIELD: organic chemistry.

SUBSTANCE: derivatives of 4-substituted phenylamine of general formula (I) and agronomically acceptable salts of these compounds, where R¹ is hydrogen; R² is C_2-8alkyl; R³ is C_1-6alkyl; where each R² and R³ may be optionally substituted with one or more groups selected from the group consisting of X and R'; R⁴, R⁵, R⁶ and R⁷ are independently selected from the group consisting of hydrogen, X, CN, S(O)_nR'' ,OR'', C_1-8-alkyl and C_3-8-cycloalkyl; and all groups above may be optionally substituted with one or more groups selected from the group consisting of X and R'; R⁸ and R⁹ are independently selected from the group consisting of hydrogen, X, CN, (C=O)-R'', C_1-6-alkyl and C_1-6-alkoxy; and all groups above may be substituted with one or more groups selected from the group consisting of X and R' or R⁸ and R⁹ together with the atoms to which they are attached may form a group =C(R'R'''), =NR'''; A is selected from the group consisting of fused or non-fused C₆-₁₀aryl and pyridinyl; this ring A is optionally substituted with one or more R¹⁰ groups; where R¹⁰ is selected from the group containing hydrogen, X, CN, NO₂, NR'₂, S(O)_nR'', C_1-8alkyl, C_1-8haloalkyl, C_1-8alkoxy, C_1-8alkylthio, C_1-8haloalkoxy, C_1-8haloalkylthio, C_3-8cycloalkyl; and where each R⁸, R⁹ and R¹⁰ may be optionally substituted with one or more groups selected from the group consisting of X and R'; where X is a halogen; R' is selected from the groups consisting of hydrogen, straight or branched chain C _1-6 -alkyl and cyclic C _3-6 -alkyl, where each group R' optionally substituted with one or more Xs; R'' selected from groups consisting of hydrogen, NR'₂, OR' and unbranched or branched chain C_1-12alkyl; each R group'' optionally substituted with one or more groups selected from the group consisting of X, R', OR', CN and phenyl which is optionally substituted with one or more R'; R''' is selected from the groups consisting of hydrogen and unbranched or branched C_1-6alkyl; and all groups above may be substituted with one or more X; m and n are integers, where n=0, 1 or 2; and m=1 or 2. The invention also relates to a composition, the use of a compound represented by formula (I) or a composition based on it, a method for controlling or preventing infection of useful plants with phytopathogenic fungi in cultivated crops and/or horticultural crops.

EFFECT: effective protection against phytopathogenic microorganisms of beneficial plants in cultivated crops and/or horticultural crops provided by a compound of general formula (I) or a composition based on it.

13 cl, 3 tbl, 32 ex

(I)