The invention provides novel insecticidally and acaricidally active compounds of formula (I) :
wherein X represents the residue of any carboxylic acid X-COOH which forms an insecticidally active ester with a 3-phenoxybenzyl alcohol, and R, R⁶ and R⁷ are each selected from hydrogen, halogen, and alkyl of up to four carbon atoms, provided that at least one of R, R⁶ and R⁷ represents halogen, and further provided that R and R⁶ are not both bromine when R⁷ is hydrogen. The invention also provides processes for the preparation of compounds of formula (I), compositions comprising them, and methods of combating insect and acarine pests therewith. The invention provides intermediates for the preparation of the compounds of formula (I), those intermediates having the formula :
and processes for their preparation.
本发明提供了式 (I) 的新型杀虫和杀螨活性化合物:
其中X代表与
3-苯氧基苄醇形成杀虫活性酯的任何
羧酸X-COOH的残基,R、R⁶和R⁷各自选自氢、卤素和最多四个碳原子的烷基,条件是R、R⁶和R⁷中至少有一个代表卤素,进一步条件是当R⁷为氢时,R和R⁶不同时为
溴。本发明还提供了制备式 (I) 化合物的工艺、包含它们的组合物以及用其防治虫害和螨害的方法。本发明提供了制备式(I)化合物的中间体,这些中间体具有式:
及其制备工艺。