Acaricidal, larvicidal and ovicidal tetrazine derivatives and compositions, processes for their preparation and methods of using them
申请人:FBC LIMITED
公开号:EP0005912A1
公开(公告)日:1979-12-12
The substituted tetrazines of the formula:
and of the formula:
wherein: R1, R2 and R4 each represent hydrogen, phenyl, alkyl of 1 to 6 carbon atoms, or alkenyl or alkynyl of 3 to 6 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, hydroxy groups, cyano groups, carboxy groups, alkoxycarbonyl groups of 2 to 5 carbon atoms, or alkoxy groups of 1 to 4 carbon atoms; or R1 and R2 together represent a single bond; R3 represents alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl, or phenylalkyl of 7 to 10 carbon atoms, each of which may be unsubstituted or substituted by one or more halogen atoms, alkyl or alkoxy groups of 1 to 6 carbon atoms, nitro groups, cyano groups, mercapto groups, or alkyl-mercapto groups of 1 to 4 carbon atoms; and R6 represents a phenyl group substituted in at least the 2-position by fluorine, chlorine,. bromine or iodine; are effective to combat acarids and their eggs.
Most of the compounds are new and processes for their preparation are described.
式的取代四嗪:
和式
其中R1、R2 和 R4 各自代表氢、苯基、1 至 6 个碳原子的烷基或 3 至 6 个碳原子的烯基或炔基,其中每个基团可以未被取代或被一个或多个卤素原子、羟基、氰基、羧基、2 至 5 个碳原子的烷氧羰基或 1 至 4 个碳原子的烷氧基取代;或 R1 和 R2 一起代表单键;R3 代表 1 至 6 个碳原子的烷基、3 至 7 个碳原子的环烷基、苯基或 7 至 10 个碳原子的苯基烷基,其中每个烷基可以未被取代,也可以被一个或多个卤素原子、1 至 6 个碳原子的烷基或烷氧基、硝基、氰基、巯基或 1 至 4 个碳原子的烷基-巯基取代;以及 R6 代表至少在 2 位被氟、氯、溴或碘取代的苯基。溴或碘取代的苯基;可有效防治螨虫及其虫卵。
大多数化合物都是新化合物,并介绍了其制备过程。