Novel herbicides

Details Novel herbicides Novel herbicides

C - Chemistry, Metallurgy

07

D

C07D 231/12 (2006.01) A01N 43/48 (2006.01) A01N 43/56 (2006.01) A01N 43/74 (2006.01) A01N 43/84 (2006.01) C07D 231/14 (2006.01) C07D 401/12 (2006.01) C07D 403/12 (2006.01) C07D 405/04 (2006.01) C07D 405/12 (2006.01) C07D 413/04 (2006.01) C07D 417/04 (2006.01)

Patent

CA 2219269

Compound of the formula I (see fig. I) in which R1 is C1-C4 alkyl; R2 is cyano or NH2C(S)-; R3 is hydrogen, C1-C4alkyl, C1-C4haloalkyl, C3- or C4alkynyl, C3-C8haloalkenyl, NC-CH2-, HOC(O)-CH2- or C1-C4 alkoxy-C(O)-CH2-; W is a group (see fig. W1), (see fig. W2), or (see fig. W31); and R4 to R5, R60 , R61 , R70, X1, X2, and A1-B1 are as defined in claim 1, and the pyrazole N-oxide, agronomically acceptable salts and stereomers of these compound of the formula I, with the exclusion of the compound of the formula (see fig. II), have good selective herbicidal properties when used pre- and post-emergence. The preparation of these compounds and their use as herbicidally active ingredients are described.

Composé de formule I (fig. I), où R1 est un alkyle C1-C4; R2 est un cyano ou NH2C(S)-; R3 est de l'hydrogène, un groupe alkyle C1-C4, haloalkyle C1-C4, alcynyle C3- ou C4, C3-C8, haloalcényle NC-CH2-, HOC(O)-CH2- ou alcoxy C1-C4-C(O)-CH2-; W est un groupe (fig. W1), (fig. W2) ou (fig. W31); R4 à R5, R60 , R61 , R70, X1, X2 et A1-B1 correspondent à la revendication 1; le N-oxyde de pyrazole, ainsi que les sels et stéréo-isomères, acceptables en agronomie, des composés de formule I, à l'exclusion du composé de formule (fig. II), ont de bonnes propriétés herbicides sélectives par application pré- et post-levée. L'invention décrit la préparation de ces composés et de leur emploi comme ingrédients herbicides.

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