This invention provides novel insecticidally and acaricidally active pyrimidine derivatives of formula (I):
and stereoisomers thereof, wherein
R' is selected from alkyl; alkenyl; alkynyl: haloalkyl; haloalkenyl; and cycloalkyl optionally substituted by alkyl or halogen;
R2 is selected from alkyl; haloalkyl; alkoxy; alkylamino; dialkylamino; halogen; cycloalkyl optionally substituted by halogen or alkyl; and phenyl optionally substituted by alkyl, haloalkyl, halogen or alkoxy;
R3 is selected from hydrogen and halogen;
R4 is the residue of an alcohol of formula R4-OH which forms an insecticidal ester when combined with chrysanthemic acid, permethrin acid or cyhalothrin acid; and
X is selected from oxygen and sulphur; provided that R2 may not represent an alpha-branched alkyl group or a cycloalkyl group when R' represents 1-methylethyl.
本发明提供了新型杀虫和杀螨活性的式(I)
嘧啶衍
生物:
及其立体异构体,其中
R'选自烷基、烯基、炔基、卤代烷基、卤代烯基和任选被烷基或卤素取代的环烷基;
R2 选自烷基、卤代烷基、烷氧基、烷基
氨基、二烷基
氨基、卤素、任选被卤素或 烷基取代的环烷基和任选被烷基、卤代烷基、卤素或烷氧基取代的苯基;
R3 选自氢和卤素;
R4 是式 R4-OH 的醇的残留物,该醇与
菊酸、
氯菊酸或
氯氰菊酸结合形成杀虫酯;以及
X 选自氧和
硫;但当 R'代表 1-甲基乙基时,R2 不得代表α-支链烷基或环烷基。