Herbicidal sulfonyl urea derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 239/52 (2006.01) A01N 47/36 (2006.01) C07C 311/29 (2006.01) C07C 329/06 (2006.01) C07D 213/71 (2006.01) C07D 239/42 (2006.01) C07D 401/12 (2006.01) C07D 521/00 (2006.01)

Patent

CA 2203011

The present invention relates to novel sulfonyl urea derivatives of formula (I) having erythro-type stereoisomer as herbicides for treatment of pre- emergence and/or post-emergence, their use and composition as agriculturally suitable herbicides, wherein, P and Q, as equivalent or different group respectively, are CH or N, and present as aromatic ring including P and Q as benzene or pyridine ring; R is H, (a) or (b) group, wherein Ra is C1 C4 alkyl, C1 C3 haloalkyl, C2 C4 alkenyl or C2 C4 alkynyl group, wherein Xa is O, S, NH or NRa group; R' is H or CH3 group; and X and Y are independently halogen atom, C1 C2 alkyl, C1 C2 alkoxy or C1 C2 haloalkoxy group.

Nouveaux dérivés de sulfonylurée répondant à la formule (I) et possédant un stéréoisomère de type érythro, utilisés à titre de désherbants utilisables dans un traitement de prélevée et/ou de postlevée, leur utilisation, et leur composition sous forme de désherbants à usage agricole. Dans ladite formule (I), P et Q, identiques ou différents, représentent CH ou N, le noyau aromatique contenant P et Q étant un noyau benzénique ou pyridinique; R représente H ou un groupe (a) ou (b), où R?a¿ représente un groupe alkyle C¿1? ?C¿4?, haloalkyle C¿1? ?C¿3?, alcényle C¿2? ?C¿4? ou alcynyle C¿2? ?C¿4?, et X?a¿ représente O, S, NH ou un groupe NR?a¿; R' représente H ou un groupe CH¿3?; et X et Y, indépendamment l'un de l'autre, représentent un atome d'halogène ou un groupe alkyle C¿1? ?C¿2?, alcoxy C¿1? ?C¿2?, ou haloalcoxy C¿1? ?C¿2?.

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