DERIVATIVE OF SUBSTITUTED PYRAZOLYL PYRAZOLE AND USE THEREOF AS HERBICIDE Russian patent published in 2019 - IPC A01N43/90 A01N53/12 A01P13/00 C07D471/04 

FIELD: agriculture.

SUBSTANCE: invention relates to the agriculture. Compound capable of effectively combating harmful weeds at high sheet stage of formula (I):

(I)

where R¹ is a chlorine atom, R² is a cyano group or a nitro group, R³ is C₃-C₆cycloalkyl group or 3-cyclohexyl group, where C₃-C₆cycloalkyl group can be substituted with one methyl group, and is equal to 4 and b is equal to 0–2, where, when R² is cyano group and R³ is a cyclopropyl group, b is 1 or 2.

EFFECT: invention allows to increase the efficiency of weed control.

7 cl, 5 tbl, 1 ex