申请人:Ciba-Geigy Corporation
公开号:US04959096A1
公开(公告)日:1990-09-25
Novel substituted isonicotinic acid esters of the general formula ##STR1## in which Y is halogen; X is oxygen or sulfur; Q is C.sub.1 -C.sub.3 alkylene, propenylene, C.sub.1 -C.sub.3 alkylene mono- or di-substituted by R, or propenylene mono- or di-substituted by R; R is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl having from 1 to 3 halogen atoms, cyano, C.sub.2 -C.sub.5 alkoxycarbonyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, or phenyl substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, trifluoromethyl, tricholoromethyl, nitro or by cyano, or benzoyl or benzoyl substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, trichloromethyl, nitro or by cyano; A is phenyl, biphenyl, phenoxyphenyl, naphthyl, pyridyl, furyl, thienyl, imidazolyl or triazolyl, it being possible for each of these radicals to be unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 haloalkoxy having from 1 to 3 halogen atoms, trifluoromethyl, nitro or by cyano; with the proviso (1) that if A is imidazolyl or triazolyl R may not be phenyl or benzoyl, and (2) that A and the R substituent in Q may together contain no more than 3 rings. The novel active ingredients have plant-protecting properties and are suitable especially for the preventive protection of plants against attack by phytopathogenic microorganisms, such as fungi, bacteria and viruses.
本发明涉及一种新型的取代异烟酸酯类化合物,其通式为##STR1## 其中,Y为卤素;X为氧或硫;Q为C.sub.1-C.sub.3烷基、丙烯基、C.sub.1-C.sub.3烷基单取代或双取代的R基,或丙烯基单取代或双取代的R基;R为C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4卤代烷基,其上有1至3个卤素原子、氰基、C.sub.2-C.sub.5烷氧羰基、C.sub.3-C.sub.6环烷基、苯基或C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、卤素、三氟甲基、三氯甲基、硝基或氰基取代的苯基或苯甲酰基或C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、三氟甲基、三氯甲基、硝基或氰基取代的苯甲酰基;A为苯基、联苯基、苯氧基苯基、萘基、吡啶基、呋喃基、噻吩基、咪唑基或三唑基,这些基可以是未取代或取代的,取代基为卤素、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.3烷氧基、C.sub.1-C.sub.3卤代烷氧基,其上有1至3个卤素原子、三氟甲基、硝基或氰基;但是,如果A为咪唑基或三唑基,则R不能为苯基或苯甲酰基,且A和Q中的R取代基不能共同含有3个环。这些新型活性成分具有保护植物的作用,特别适用于预防性保护植物免受植物病原微生物的攻击,例如真菌、细菌和病毒。