| 摘要 |
<p>NEW MATERIAL:An N-benzoyl-N'-pyridyloxyphenylurea based compound expressed by formula I (R1-R5 are H or halogen; n is an integer 3-8). EXAMPLE:N-[3-Chloro-4-( 5-heptafluoropropyl-2-pyridyloxy )phenyl]-N'-( 2-chlorobenzoyl)urea. USE:An insecticide, capable of exhibiting improved acivity particularly as an active constituent in an agent for destroying insects, effective for controlling various injurious insects, controlling the development or growth of injurious insects in excrements thereof by giving a feed containing a mixture of the active constitutent to domestic animals, and preventing hatching of eggs by treating imagoes with the active constituent. The amount of application is 1-10,000ppm concentration of the active constituent. PREPARATION:A benzoyl isocyanate based compound expressed by formula IIis reacted with an aniline based compound expressed by formula III in a solvent, e.g. dioxane, at 0-200 deg.C for 0.1-24hr to afford the aimed compound expressed by formula I.</p> |
