| abstract |
NEW MATERIAL: A compound of formula I (R 1 is H, C 1-4 alkyl or C 3-6 cycloalkyl; R 2 is H or C 1-4 alkyl; R 3 is H, C 1-4 alkyl or C 3-6 cycloalkyl; R 4 is H, C 1-4 alkyl, C 3-6 cycloalkyl, etc.; A is a heterocycle). n EXAMPLE: 1-(2-Chloropyrido-5-ylmethyl)-1-methyl-2-nitroguanidine. n USE: Insecticides. Useful for controlling insects and spiders in a cultivated plant and a foliage plant. n PROCESS: A compound of formula I can be obtained by reacting an amine of formula H-NR 1 -CHR 2 -A with a nitrosoisothiourea of formula II in an inert solvent such as methanol, etc., at 0-150°C. n COPYRIGHT: (C)1991,JPO |