Herbicidal oxadiazolidines

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 271/07 (2006.01) A01N 47/38 (2006.01) A01N 55/10 (2006.01) A01N 57/24 (2006.01) C07C 271/06 (2006.01) C07C 271/66 (2006.01) C07D 271/08 (2006.01) C07D 271/10 (2006.01) C07D 413/04 (2006.01) C07D 413/06 (2006.01) C07D 413/12 (2006.01) C07D 413/14 (2006.01) C07D 417/04 (2006.01) C07D 417/06 (2006.01) C07F 7/08 (2006.01) C07F 7/10 (2006.01) C07F 9/653 (2006.01)

Patent

CA 2359108

Compounds of Formula (1) and processes for their preparation, their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein Q, X1, X2, X3, R1, R2, R6 and R7 are as defined in the disclosure. Also disclosed are novel intermediates of Formula (5), Formula (8) and Formula (20) wherein R27 is -(CR6R7)q-Q; R6, R7, q, Q, X1 and X2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula (1).

Cette invention, qui a trait à des composés correspondant à la formule (1), ainsi qu'à leurs procédés de préparation, concerne également leurs oxydes-N et leurs sels utilisables en agriculture, ces composés se révélant des plus utiles, s'agissant de lutter contre une végétation indésirable. Dans cette formule, Q, X?1¿, X?2¿, X?3¿, R?1¿, R?2¿, R?6¿ et R?7¿ sont tels que définis dans le descriptif. L'invention porte, de surcroît, sur de nouveaux intermédiaires correspondant aux formules (5), (8) et (20), formules dans lesquelles R?27¿ représente -(CR?6¿R?7¿)¿q?-Q; R?6¿, R?7¿, q, Q, X?1¿ et X?2¿ sont tels que définis dans le descriptif. Elle concerne, en outre, des compositions contenant les composés correspondant à la formule (1) ainsi qu'une technique permettant de lutter contre une végétation indésirable, laquelle technique consiste à mettre en contact ladite végétation ou son environnement avec une quantité efficace du composé correspondant à la formule (1).

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