PYRAZOLCARBOXAMIDE AND PYRAZOLTHIOAMIDE DERIVATIVES AS FUNGICIDES Russian patent published in 2005 - IPC

FIELD: organic chemistry, fungicides, agriculture.

SUBSTANCE: invention describes pyrazolcarboxamide of the formula (I) wherein if X means oxygen atom (O) then R₁ represents (C₁-C₃)-alkoxy-(C₁-C₃)-alkyl; R₂ means (C₁-C₃)-halogenalkyl; R₃ means fluorine (F), chlorine (Cl) or bromine atom (Br), and if X means sulfur atom (S) then R₁ means (C₁-C₃)-alkyl; R₂ means (C₁-C₃)-halogenalkyl; R₃ means halogen atom. Also, invention describes a method for preparing compounds of the formula (I), a composition for control of microorganisms and prevention for their attack and damage of plants, and a method for control of phytopathogen organisms, and compound of the formula (V) wherein X means sulfur atom (S); R₁ means (C₁-C₃)-alkyl; R₂ means (C₁-C₃)-halogenalkyl; R₃ means chlorine, bromide or iodine atom. Invention provides control and prevention in infection of plants with phytopathogenic microorganisms - fungi in agriculture and horticulture.

EFFECT: valuable agricultural properties of compounds.

9 cl, 4 tbl, 12 ex