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    • 8. 发明授权
    • 3,4-dihydro-2H-pyrans useful as pesticides
    • 3,4-二氢-2H-吡喃可用作农药
    • US4876275A
    • 1989-10-24
    • US176700
    • 1988-04-01
    • Walter HimmeleHans TheobaldFranz MergerErnst HofmannChristoph KuenastPeter Hofmeister
    • Walter HimmeleHans TheobaldFranz MergerErnst HofmannChristoph KuenastPeter Hofmeister
    • A01N43/16A01N43/28A01N43/30A01N43/32C07D309/30C07D407/12
    • C07D407/12A01N43/16A01N43/28A01N43/30A01N43/32C07D309/30
    • 3,4-dihydro-2H-pyrans of the formula I ##STR1## where R.sup.1 is C.sub.4 -C.sub.20 -alkyl, C.sub.4 -C.sub.20 -alkoxyalkyl, aryl or C.sub.7 -C.sub.20 -arylalkyl, or is aryl or C.sub.7 -C.sub.20 -arylalkyl which bears from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.3 is aryl, or aryl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, or the radical ##STR2## where R.sup.4, R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.7 is phenyl or benzoyl, or phenyl or benzoyl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy and C.sub.1 -C.sub.8 -haloalkoxy, or a five- or six-membered heterocycle containing one or two oxygen atoms and which is either unsubstituted or substituted by one to three C.sub.1 -C.sub.8 -alkyl groups or one C.sub.3 -C.sub.6 -spirocycloalkyl, and l, m and n are 0 or 1, and their use for combating pests.
    • 其中R 1是C 4 -C 20烷基,C 4 -C 20烷氧基烷基,芳基或C 7 -C 20芳基烷基,或者是芳基或C 7 -C 20 - 芳基烷基, 1至3个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - 卤代烷基,C 1 -C 8 - 烷氧基或C 1 -C 8 - 卤代烷氧基的取代基的芳基烷基,R 2为氢或C 1 -C 4烷基, R3是芳基或带有1至3个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - 卤代烷基,C 1 -C 8 - 烷氧基或C 1 -C 8 - 卤代烷氧基的取代基的芳基或基团< 其中R 4,R 5和R 6是氢或C 1 -C 4 - 烷基,R 7是苯基或苯甲酰基,或苯基或苯甲酰基,其带有一至三个选自卤素,C 1 -C 8 - 烷基,C 1 -C 8 - ,C 1 -C 8 - 烷氧基和C 1 -C 8 - 卤代烷氧基,或含有一个或两个氧原子的五元或六元杂环,其未被取代或被一至三个C 1 -C 8烷基或一个C 3 -C 6 - 螺环烷基,l,m和n为0或1, 用于防治害虫。