Herbicidal agents based on pyrazole derivatives

C - Chemistry – Metallurgy – 07 – D

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260/315.3, 71/8.

C07D 231/38 (2006.01) A01N 43/56 (2006.01) A01N 47/02 (2006.01) A01N 47/18 (2006.01) A01N 47/22 (2006.01) A01N 47/36 (2006.01) A01N 53/00 (2006.01) A01N 57/22 (2006.01) C07D 231/40 (2006.01) C07F 9/40 (2006.01) C07F 9/6509 (2006.01)

Patent

CA 1245223

Abstract Herbicidally active 5-amino-1-phenyl-pyrazoles, most of which are new, of the formula Image in which R1 represents hydrogen, nitroso, nitro, halogen, alkyl, halogenoalkyl, aryl optionally substituted by a halogen, nitro, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl, or one of the radicals -S(O)n-R9; Image ; Image or Image ; R2 represents hydrogen or a radica1 Image ; R3 independently of R2 represents the same radicals as R2 and additionally represents alkyl; R4 and R6 independently of one another represent cyano, nitro, halogen, alkyl, alkoxy, alkoxycarbonyl, halogenoalkyl, halogenoalkoxy or a radical -S(O)n-R13, and R5, R7 and R8 independently of one another and of R4 and R6 represent the same radicals as R4 and R6 and additionally represent hydrogen, and R9 represents hydrogen, hydroxyl, halogen, amino, alkylamino, dialkylamino, alkyl, halogenoalkyl or aryl optionally substituted by halogen, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl, R10 represents hydrogen, alkyl or aryl optionally substituted by halogen, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl, R11 represents hydrogen, alkyl, halogenoalkyl, alkenyl, alkynyl or aralkyl, R12 represents hydrogen, alkyl, alkenyl, alkynyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl, optionally substituted by halogen, lower alkyl or lower halogenoalkyl, alkoxy, alkylthio, alkylamino, dialkylamino, aryl, aryloxy, arylthio or arylamino, each of the last four being optionally substituted by halogen, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl, R13 represents alkyl, halogenoalkyl, amino, alkylamino or dialkylamino, X represents oxygen or sulphur, and n represents an integer of 0, 1 or 2.

472597

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