Heterocycle-substituted salicylic acid derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 401/12 (2006.01) A01N 43/40 (2006.01) A01N 43/48 (2006.01) A01N 43/54 (2006.01) A01N 43/56 (2006.01) A01N 43/64 (2006.01) A01N 43/713 (2006.01) A01N 43/72 (2006.01) A01N 43/78 (2006.01) C07D 401/14 (2006.01) C07D 403/12 (2006.01) C07D 403/14 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01) C07D 413/12 (2006.01) C07D 417/12 (2006.01)

Patent

CA 2231493

The invention relates to salicylic acid derivatives of formula I, in which the substituents have the following meaning: A is a five membered heteroaromatic with a oxygen atom, nitrogen atom or sulphur atom or with one to four nitrogen atoms or with one to two nitrogen atoms and additionally a sulphur atom or an oxygen atom in the ring which can carry at least one -B-R5 group and additionally one or a plurality of the following substituents: nitro, halogen, cyano, optionally substituted alkyl, alkyl thio, alkyl sulfonyl, alkyl sulfinyl, formyl or a R5 group; a six membered hereroaromatic with two to three nitrogen atoms in the ring which can carry at least one -B-R5 group and additionally one or a plurality of the following substituents: nitro, halogen, cyano, optionally substituted alkyl, alkyl thio, alkyl sulfonyl, alkyl sulfinyl, formyl or a R5 group; B is oxygen, sulphur, SO, SO2; X is oxygen or sulphur; Y is nitrogen or C-H; Z is nitrogen or a C-R4 grouping, the substituents R1, R2, and R3 having the meaning given in claim 1. The invention also relates to a process for the preparation of these derivatives, herbicidal agents and a method of controlling undesirable vegetation.

L'invention concerne des dérivés d'acide salicylique répondant à la formule (I), dans laquelle les substituants ont la signification suivante: A désigne un composé hétéroaromatique à 5 membres qui contient un atome d'oxygène, d'azote ou de soufre, ou 1 à 4 atomes d'azote ou 1 à 2 atomes d'azote et un atome supplémentaire de soufre ou d'oxygène dans le cycle, qui porte au moins un reste -B-R?5¿ et qui peut en outre porter un ou plusieurs des substituants suivants: nitro, halogène, cyano, alkyle, alkylthio, alkylsulfonyle, alkylsulfinyle, formyle le cas échéant substitués ou un reste R?5¿; un composé hétéroaromatique à 6 membres qui contient 2 ou 3 atomes d'azote dans le cycle, qui porte au moins un reste -B-R?5¿ et qui peut en outre porter un ou plusieurs des substituants suivants: nitro, halogène, cyano, alkyle, alkylthio, alkylsulfonyle, alkylsulfinyle, formyle le cas échéant substitués ou un reste R?5¿; B désigne oxygène, soufre, SO, SO¿2?; X désigne oxygène ou soufre; Y désigne azote ou C-H; Z désigne azote ou un groupement C-R?4¿, alors que les substituants R?1¿, R?2¿ et R?3¿ ont la signification donnée dans la première revendication. L'invention concerne également un procédé de préparation de ces dérivés d'acide salicylique, des agents herbicides et un procédé de limitation de la croissance de plantes indésirables.

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