CARBOXAMIDE DERIVATIVES, HERBICIDE COMPOSITION AND A METHOD OF STRUGGLE AGAINST WEEDS Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: product of the formula (I) where n 1 or 2; X independently each of other hydrogen, halogen, lower alkyl, possibly substituted with halogen, lower alkoxyl, nitro-group; Z oxygen or sulfur; R′ hydrogen, lower alkyl, lower alkenyl; R″ hydrogen, C₁-C₈-alkyl, possibly substituted with 1 or 3 halogen atoms, OH, CN, lower alkoxy, lower alkoxycarbonyl, lower dialkylamino-group, lower alkenyl, lower alkynyl, C₃-C₆-cycloalkyl, C₃-C₆-cycloalkyl-lower alkyl substituted with two halogen atoms at cycloalkyl moiety, lower alkoxyl, lower alkenyloxyl, lower alkoxycarbonyl, lower alkylamine, phenylamine, possibly substituted with halogen, lower alkoxycarbonylamino, lower dialkylcarbamoyl; R′ and R″ together with nitrogen atom form morpholyl, pyrrolidinyl, 4-methylpiperazinyl. Herbicide composition has effective dose of product and special additives. Composition is used in agriculture for plant protection. EFFECT: improved method of synthesis, increased effectiveness. 4 cl