| abstract |
NEW MATERIAL:A compound of formula I [R 1 is H, cyano or 1-4C alkyl; R 2 is H, 1-4C alkyl, 3-4C alkenyl, etc.; R 3 is -O-R 4 , -S-R 4 , etc. (R 4 is 1-4C alkyl, 3-4C alkenyl, etc.); Z contains at least one heteroatom among N, O and S, being five to six-membered heterocycle group capable of substitution]. n EXAMPLE: 3-(2-chloro-5-pyridylmethyl)-1-methyl-2-nitroguanidine. n USE: Insecticides, having strong insecticidal effects for controlling a wide variety of insect pests, harmful liquid absorbing pests, biting pests, plant parasitic pests, storage pests. sanitary insect pests, etc. n PREPARATION: A reaction is carried out between a compound of formula II and a compound of formula III (M is halogen, methylsulfonyloxy, etc.) in an inert solvent in the presence of an acid(e.g. alkali metal hydroxide) at 0-80°C to obtain the objective compound of the formula I (where R 3 is -S-R 4 ). n COPYRIGHT: (C)1990,JPO&Japio |