There is provided a process for the manufacture of insecticidal, nematicidal and acaricidal 2-aryl-3-substituted-5-(trifluoromethyl)pyrrole compounds via the condensation of an N-(substituted benzyl)-2,2,2-trifluoroacetimidoyl chloride compound with an .alpha.-halo-.alpha.,.beta.-unsaturated nitrile, ester or nitro compound.
提供了一种制备杀虫、杀线虫和杀螨2-芳基-3-取代-5-(三
氟甲基)
吡咯化合物的方法,通过将N-(取代苄基)-2,2,2-三
氟乙
酰亚胺氯化物与α-卤代-α,β-不饱和腈、酯或
硝基化合物进行缩合。