Alpha, beta-unsaturated, delta-lactones, process for their preparation and their application as pesticides

摘要

The present invention relates to compounds of general formula (1):wherein R₁ and R₂ represent, independently from each other, hydrogen, halogen, alkoxy, substituted alkoxy or an ester group; R₃ represents -CH₂R₆ (wherein R₆ represents an ester group), oxiranyl, or a group of formulawherein R₇ represents hydrogen or alkyl; R₉ represents phenyleulfanyl, phenylselenyl, phenylsulfoxy or phenyl-selenoxy; and R₉ represents hydrogen or halogen; as well as to the process for the preparation of these compounds, their utilization as pesticides and to the method to apply the same to the said pests or their locus.