Herbicidally active (alkynyl-phenyl)-substituted cyclic dione compounds and derivatives thereof
申请人:SYNGENTA LIMITED
公开号:US20160207934A1
公开(公告)日:2016-07-21
The present invention relates to a compound of formula (I): wherein: X is methyl or chlorine; R
1
is fluorine or bromine; R
2
is ethynyl, C
1
-C
3
alkoxy, C
1
-C
3
haloalkoxy, or C
1
-C
3
alkoxy-C
1
-C
3
alkoxy-; 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 cyclopentane-1,3-dione-2-yl, a cyclohexane-1,3, 5-trione-2-yl, a cyclohexane-1,3-dione-2-yl, or a cycloheptane-1,3-dione-2-yl, or a derivative thereof (e.g. a fused such as fused bicyclic derivative, and/or a spirocyclic derivative), or 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 R
1
is fluorine; and/or R
2
is —O—R
2A
, wherein R
2A
is methyl, ethyl, trifluoromethyl, difluoromethyl, trifluoroethyl, or —CH
2
CH
2
OCH
3
. 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.
本发明涉及一种式为(I)的化合物: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-;而Q为吡喃-3,5-二酮-4-基,噻吩-3,5-二酮-4-基,哌啶-3,5-二酮-4-基,环戊-1,3-二酮-2-基,环己-1,3,5-三酮-2-基,环己-1,3-二酮-2-基或环庚-1,3-二酮-2-基,或其衍生物(例如融合的双环衍生物和/或螺环衍生物),或其烯醇酮互变异构体衍生物,其中Q在此进一步定义;化合物(I)可以选择作为农药可接受的盐存在。优选地,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。这些化合物适用于用作除草剂。因此,本发明还涉及一种控制作物中有用植物的杂草,特别是草本单子叶杂草的方法,包括将式为(I)的化合物或包含这种化合物的除草剂组合物施用于杂草和/或植物和/或其所在地点。