Five-membered heterocycles with three heteroatoms, their preparation and their use as pesticides

摘要

The novel compounds of formula..image..Wherein R1indicates that the phenyl or pyridyl group that may be selected to replace, R2indicate the phenyl replaced, and X indicates that oxygen, sulphur or NR3, Y indicate oxygen or sulphur, and R3indicates methyl, halogen methyl or 2-propynyl.