The invention relates to the use of 2-oxopyrroles of general formula (I) and their agriculturally usable salts as crop protection agents and to novel 2-oxopyrroles of formula (I). The substituents have the following meanings: R1 represents aryl or heteroaryl and these radicals may carry one to five groups independently of each other or alternatively, the aryl or heteroaryl radical forms a bicyclical system with a fused-on phenyl ring, a fused-on C3-C6 carbocyclic compound or a 5- or 6-membered heterocyclic compound and R2 represents C2-C6-alkyl or aryl or heteroaryl, COOR3 or CONR3R4, R3 and R4 representing, independently of each other, hydrogen, C1-C6-alkyl, C2-C6-alkenyl, C3-C7-cycloalkyl or C2-C6-alkyl-aryl which can optionally be partially or fully halogenated or can carry one to three substituents chosen from the following: C1-C4-alkoxy, C1-C4-halogenalkoxy, C1-C4-alkylthio, C3-C7-cycloalkyl, C5-C7-cycloalkenyl.
本发明涉及通式(I)的2-氧代
吡咯的使用及其农业可用盐作为作物保护剂以及通式(I)的新型2-氧代
吡咯。取代基的含义如下:R1代表芳基或杂芳基,这些基团可以独立地携带一到五个基团,或者芳基或杂芳基基团与融合的苯环、融合的C3-C6碳环化合物或5-或6-成员
杂环化合物形成双环系统;R2代表C2-C6烷基或芳基或杂芳基、COOR3或CONR3R4,R3和R4独立地表示氢、C1-C6烷基、C2-C6烯基、C3-C7环烷基或C2-C6烷基-芳基,它们可以选择性地部分或全部卤代或携带以下一到三个基团:C1-C4-烷氧基、C1-C4-卤代烷氧基、C1-C4-烷基
硫基、C3-C7-环烷基、C5-C7-环烯基。