申请人:Ciba-Geigy Corporation
公开号:US04699913A1
公开(公告)日:1987-10-13
The invention relates to novel unsubstituted or substituted 2-phenyl-5-pyridyl-4,5-dihydro-1,3,4-thiadiazoles of the formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R is hydrogen, C.sub.1 -C.sub.4 alkyl, halogen, nitro, cyano, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkyl containing 1 to 9 halogen atoms, C.sub.1 -C.sub.4 haloalkoxy containing 1 to 9 halogen atoms, C.sub.1 -C.sub.4 haloalkylthio containing 1 to 9 halogen atoms, phenyl, substituted phenyl, phenylalkyl, substituted phenylalkyl, phenoxy, substituted phenoxy, phenylthio, substituted phenylthio, pyridyloxy or substituted pyridyloxy and n is a value from 1 to 5; and to the salts and optical isomers thereof; to the preparation of these compounds and to compositions containing them for use in pest control, in particular for controllng insects that attack plants and animals. The novel compounds exhibit in particular good activity against plant-destructive sucking insects.
本发明涉及一种新型的未取代或取代的2-苯基-5-吡啶基-4,5-二氢-1,3,4-噻二唑,其化学式为##STR1##其中R1为氢或C1-C4烷基;R为氢、C1-C4烷基、卤素、硝基、氰基、C1-C4烷氧基、C1-C4烷基硫基、含1至9个卤素原子的C1-C4卤代烷基、含1至9个卤素原子的C1-C4卤代烷氧基、含1至9个卤素原子的C1-C4卤代烷硫基、苯基、取代苯基、苯基烷基、取代苯基烷基、苯氧基、取代苯氧基、苯基硫基、取代苯基硫基、吡啶氧基或取代吡啶氧基,n为1至5的值;以及它们的盐和光学异构体;制备这些化合物和含有它们的组合物,用于害虫控制,特别是用于控制攻击植物和动物的昆虫。这些新化合物表现出对破坏植物的吸食性昆虫特别好的活性。