N-phenyltetrahydroindazole derivatives

Details N-phenyltetrahydroindazole derivatives N-phenyltetrahydroindazole derivatives

C - Chemistry, Metallurgy

07

D

260/305.05, 71/7

C07D 231/56 (2006.01) A01N 43/56 (2006.01) C07D 403/10 (2006.01)

Patent

CA 2007172

N-Phenyltetrahydroindazole derivatives of the general formulae Ia and Ib (see fig. I and II) where R1 is hydrogen or fluorine, R2 is halogen, R3 is hydrogen, halogen or a C1-C4-alkyl, R4, R5 are hydrogen, C1-C8-alkyl, C2-C4-alkyl which carries a hydroxyl, C1-C4-alkoxy or C1-C4-alkylthio radical, C1-C6-alkoxy, C3-C6-alkenyl, C3-C6-alkynyl, C3-C6-alkenyloxy and/or C3-C6-alkynyloxy, or together with the nitrogen atom form a 5- or 6-membered aliphatic ring in which a methylene group may be replaced by an oxygen atom, and R6 is hydrogen, C1-C6-alkyl which is unsubstituted or substituted by one or two C1-C4-alkoxy groups, or is C3-C6-alkenyl, C3-C6-alkynyl or benzyl, processes for their manufacture, and their use as herbicides.

Dérivés de N-phényltétrahydro-indazole de formules générales Ia et Ib (voir fig. I et II), où R1 est de l'hydrogène ou du fluor, R2 est un halogène, R3 est un hydrogène, un halogène ou un alkyle C1-C4; R4, R5 sont de l'hydrogène, un radical alkyle C1-C8, alkyle C2-C4 portant un hydroxyle, alcoxy C1-C4, alkylthio C1-C4, alcoxy C1-C6, alcényle C3-C6, alcynyle C3-C6, alcényloxy C3-C6 et (ou) alcynyloxy C3-C6, ou formant avec l'atome d'azote un cycle aliphatique de 5 ou 6 chaînons, dans lequel un groupe méthylène peut être remplacé par un atome d'oxygène; R6 est de l'hydrogène, un alkyle C1-C6 (avec ou sans substitution par un ou deux groupes alcoxy C1-C4), un alcényle C3-C6, un alcynyle C3-C6 ou un benzyle; méthodes pour les préparer et leur emploi comme herbicides.

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