Process for the preparation of the compounds, process for the preparation of a composition, a process for combat or to protect a infestacao of plants, the pesticides

摘要

The invention relates to novel compounds of the formulae IMAGE (Ia) IMAGE (Ib) IMAGE (I*) in which formulae R'is C1-C5alkyl, C1-C5alkoxy, halogen or trifluoromethyl, R'' is C1-C5alkyl or halogen, m is 1 ot 3 and n is 0 to 1, X is oxygen or sulfur, Y is hydrogen, fluorine, trifluoromethyl or the group HC(F)Z, Y' is hydrogen or the group CHF2 and Z is fluorine or trifluoromethyl, as active ingredients for controlling nematodes which parasitise on plants and for protecting cultivated plants from damage caused by nematode attack.