| 摘要 |
NEW MATERIAL:An urea derivative of formula I [A is NR1R2 (R1 is H, alkyl, alkoxy; R2 is alkyl, alkenyl, 4-morpholyl, phenyl, five-membered heterocyclic group having two or three of N and S atoms or benzo-condensed group thereof, nitrogen-containing six-membered heterocyclic group or benzo-condensed group thereof, cyclic amino]. EXAMPLE:3-(1,2,3,4-Tetrahydro-1-naphthyl)-1-(2-methyl-4-quinolyl)urea. USE:A pest controlling agent. The compound of formula I gives no chemical damage to useful crops. PREPARATION:A compound of formula II is reacted with a compound of formula III to provide the compound of formula I. |
