N-BENZOYL-N'-PYRIDYLUREA BASED COMPOUND AND INSECTICIDE CONTAINING THE SAME

摘要

NEW MATERIAL:A compound expressed by formula I [X is halogen, nitro or cyano; Y is H, halogen, cyano, -COOR (R is alkyl or phenyl), -OR-, -SCH2COOR or -S(O)m-R (m is 0, 1 or 2); Z is H, halogen, cyano or 5-trifluoromethyl-2-pyridyl; n is an integer 1-5]. EXAMPLE:N-(2,6-Difluorobenzoyl)-N'-(2-chloro-3-trifluoromethyl-5-pyrid yl)urea. USE:An insecticide, effective against various injurious bugs, particularly injurious insects, and applied in 1-10,000ppm active constituent concentration. PREPARATION:A benzoyl isocyanate based compound expressed by formula IIis reacted with an aminopyridine based compound expressed by formula III in a solvent, e.g. 1,4-dioxane, at 0-120 deg.C for 0.1-24hr to afford the aimed compound expressed by formula I .