Benzothiophene derivates as herbicides

C - Chemistry – Metallurgy – 07 – D

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C07D 333/54 (2006.01) A01N 43/12 (2006.01) A01N 43/16 (2006.01) A01N 43/48 (2006.01) A01N 43/56 (2006.01) A01N 43/72 (2006.01) A01N 43/80 (2006.01) C07D 307/00 (2006.01) C07D 333/68 (2006.01) C07D 409/06 (2006.01) C07D 413/06 (2006.01)

Patent

CA 2291101

Compounds of formula (I) wherein R1 is C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy- C1-C4alkyl, C1-C4alkoxycarbonyl, cyano, cyano-C1-C4alkyl, hydroxy-C1-C4alkyl, amino-C1-C4alkyl, CHO, C1-C4alkyl-ON=CH, C2-C6alkenyl, C1-C4alkoxycarbonyl-C2- C6alkenyl or a group -CH(OR20)OR21; R20 and R21 are each independently of the other C1-C4alkyl; or R20 and R21 together are -(CH2)n1-; n1 is 2, 3 or 4; R2 is hydrogen or C1-C4alkyl; R3 and R4 are each independently of the other hydrogen, C1-C4alkyl or halogen; n is 0, 1 or 2; R5 is C1-C4alkyl, C1- C4haloalkyl, C2-C6alkenyl, C2-C6alkynyl, C1-C4alkoxy, C1-C4haloalkoxy,C1- C4alkyl-S(O)n2, (C1-C4alkyl)2NS(O)2, C1-C4alkyl-S(O)2O, halogen, nitro or cyano; n2 is 0, 1 or 2; Q is OH, halogen or a group (Q1), (Q2), (Q3), (Q4), (Q5), or (Q6); and R6 to R14, W, Y and n6 are as defined in claim 1, and agrochemically acceptable salts and stereoisomers of those compounds of formula (I) have good pre- and post-emergence selective herbicidal properties. The preparation of the compounds and their use as herbicidal active ingredients are described.

La présente invention concerne les composés de la formule (I) dans laquelle R?1¿ représente C¿1?-C¿4?alkyle, C¿1?-C¿4?haloalkyle, C¿1?-C¿4?alcoxy-C¿1?-C¿4?alkyle, C¿1?-C¿4?alcoxycarbonyle, cyano, cyano-C¿1?-C¿4?alkyle, hydroxy-C¿1?-C¿4?-alkyle, amino-C¿1?-C¿4?-alkyle, CHO, C¿1?-C¿4?-alkyle-ON=CH, C¿2?-C¿6?alcényle, C¿1?-C¿4?alcoxycarbonyle-C¿2?-C¿6?alcényle ou un groupe -CH(OR¿20?)OR¿21?; R¿20? et R¿21? représentent chacun indépendamment l'autre C¿1?-C¿4?alkyle; ou R¿20? et R¿21? représentent ensemble -(CH¿2?)¿n1?-; n¿1? représente 2, 3 ou 4; R¿2? représente un hydrogène ou C¿1?-C¿4?alkyle; R¿3? et R¿4? représentent chacun indépendamment l'autre hydrogène, C¿1?-C¿4?alkyle ou halogène; n représente 0, 1 ou 2; R¿5? représente C¿1?-C¿4?alkyle, C¿1?-C¿4?haloalkyle, C¿2?-C¿6?alcényle, C¿2?-C¿6?alkynyle, C¿1?-C¿4?alcoxy, C¿1?-C¿4?haloalcoxy, C¿1?-C¿4?alkyle-S(O)¿n2?, (C¿1?-C¿4?alkyle)¿2?NS(O)¿2?, C¿1?-C¿4?alkyle-S(O)¿2?O, un halogène, un nitro ou un cyano; n¿2? représente 0, 1 ou 2; Q représente OH, un halogène ou un groupe (Q¿1?), (Q¿2?), (Q¿3?), (Q¿4?), (Q¿5?) ou (Q¿6?); R¿6? à R¿14?, W, Y et n¿6? sont tels que définis dans la revendication 1, les sels et les stéréoisomères acceptables agrochimiquement des composés de la formule (I) possédant de bonnes propriétés herbicides sélectives de pré-levée et de post-levée. Cette invention concerne également la préparation de ces composés et leur utilisation comme ingrédients actifs à action herbicide.

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