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    • 25. 发明授权
    • Pyrethroids and their use for controlling pests
    • 拟除虫菊酯及其用于防治害虫的用途
    • US4870100A
    • 1989-09-26
    • US940649
    • 1986-12-11
    • Bernd WolfHans TheobaldRainer BeckerNorbert GoetzWalter HimmeleRudolf Kropp
    • Bernd WolfHans TheobaldRainer BeckerNorbert GoetzWalter HimmeleRudolf Kropp
    • A01N43/08A01N43/10A01N53/00A01N53/04A01N53/08C07C249/00C07D261/04C07D307/40C07D307/42C07D307/45C07D307/46C07D307/54C07D409/12
    • C07D307/42A01N43/08A01N53/00C07D261/04C07D307/46
    • 2-benzylfuryl compounds of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different substituents and are each hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylthio, alkenyl or haloalkenyl, each of not more than 6 carbon atoms, n being 1, 2 or 3 where R.sup.3 is not hydrogen, and R.sup.4 and R.sup.5 are each hydrogen or alkyl of not more than 6 carbon atoms, R is --CHO or CHR.sup.6 OA, R.sup.6 is hydrogen, cyano, alkyl, alkenyl, haloalkenyl or alkynyl, each of not more than 6 carbon atoms, or carboxamide, and A is either hydrogen or a radical of an acid typical for pyrethroids, with the proviso that R.sup.2 is not hydrogen, chlorine, bromine, methyl or methoxy when R.sup.1 is hydrogen or methyl and R.sup.3 and A are each hydrogen, and furthermore with the proviso that R.sup.1 and R.sup.2 are not methyl when A is a radical of tetramethylcyclopropanecarboxylic acid, and finally with the proviso that R.sup.2 is not methyl, chlorine, bromine or methoxy and R.sup.1 and R.sup.3 are not hydrogen when A is a radical of chrysanthemumic acid, their preparation and their use as intermediates for crop protection agents or as crop protection agents.
    • 通式I(I)的2-苄基呋喃基化合物,其中R 1,R 2和R 3是相同或不同的取代基,并且各自为氢,卤素,烷基,卤代烷基,烷氧基,卤代烷氧基,卤代烷硫基,烯基或卤代烯基, 大于6个碳原子,n为1,2或3,其中R3不是氢,R4和R5各自为氢或不超过6个碳原子的烷基,R为-CHO或CHR6OA,R6为氢,氰基,烷基 ,烯基,卤代烯基或炔基,各自不超过6个碳原子,或甲酰胺,A是氢或拟除虫菊酯典型的酸的基团,条件是R2不是氢,氯,溴,甲基或甲氧基 当R 1为氢或甲基且R 3和A各自为氢时,此外,当A为四甲基环丙烷羧酸基时,R 1和R 2不为甲基,最后条件是R 2不为甲基,氯,溴或 甲氧基,当A是基团时,R 1和R 3不是氢 菊花酸,它们的制备及其作为作物保护剂的中间体或作为作物保护剂的用途。