[EN] HERBICIDALLY ACTIVE (ALKYNYL-PHENYL)-SUBSTITUTED CYCLIC DIONE COMPOUNDS AND DERIVATIVES THEREOF<br/>[FR] COMPOSÉS DIONES CYCLIQUES (ALKYL-PHÉNYL)-SUBSTITUÉS ACTIFS DU POINT DE VUE HERBICIDE ET LEURS DÉRIVÉS
申请人:SYNGENTA LTD
公开号:WO2014191535A1
公开(公告)日:2014-12-04
The present invention relates to a compound of formula (I): wherein: X is methyl or chlorine; R1 is fluorine or bromine; R2 is ethynyl, C1-C3alkoxy, C1-C3haloalkoxy, or C1-C3alkoxy-C1-C3alkoxy-; and Q is a pyran-3,5-dione-4-yl, a thiopyran-3,5-dione-4-yl, a piperidine-3,5-dione-4-yl, a cyclohexane-1,3,5-trione-2-yl, a cyclohexane-1,3-dione-2-yl, a cycloheptane-1,3-dione-2-yl, in which each cyclic dione is bridged by alkanediyl, or a derivative thereof (e.g. an enol ketone tautomer derivative thereof), wherein Q is further defined herein; and wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. Preferably, X is methyl; and/or R1 is fluorine; and/or R2 is -O-R2A, wherein R2A is methyl, ethyl, trifluoromethyl, difluoromethyl, trifluoroethyl, or -CH2CH2OCH3. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the weeds and/or to the plants and/or to the locus thereof.
本发明涉及一种化合物,其化学式为(I):其中:X为甲基或氯;R1为氟或溴;R2为乙炔基,C1-C3烷氧基,C1-C3卤代烷氧基,或C1-C3烷氧基-C1-C3烷氧基-;Q为吡喃-3,5-二酮-4-基,硫代吡喃-3,5-二酮-4-基,哌啶-3,5-二酮-4-基,环己烷-1,3,5-三酮-2-基,环己烷-1,3-二酮-2-基,环庚烷-1,3-二酮-2-基,其中每个环状二酮由烷二基桥接,或其衍生物(例如烯醇酮互变异构体衍生物),Q在此进一步定义;化合物的化学式(I)可作为农药中可接受的盐存在。优选,X为甲基;和/或R1为氟;和/或R2为-O-R2A,其中R2A为甲基,乙基,三氟甲基,二氟甲基,三氟乙基,或-CH2CH2OCH3。这些化合物适用于作为除草剂使用。因此,本发明还涉及一种控制杂草,特别是草本单子叶杂草,在有用植物作物中的方法,包括将化合物(I)或含有该化合物的除草剂组合物施用于杂草和/或植物和/或其生长环境的方法。