The production manner and miticidal medicine null of okisa (thiums) zorijin

摘要

NEW MATERIAL:The compound of formula I [R1 is lower alkyl;R2 is phenyl which may have substituent group (halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy or methylenedioxy); group of formula V is a 5-7- membered heterocyclic group wherein the constituent atom of the ring may be substituted with a lower alkyl composed of C2-6, O0-1, N1-2; X and Y are O or S]. EXAMPLE:5-(4-Chlorophenyl)-4-methyl-3-piperidinocarbamoyl-2-thiazolidone. USE:Miticide. PREPARATION:The compound of formula I can be produced by a) reacting the compound of formula II with a phosgenation agent in an organic solvent in the presence of a base at a temperature between -20 deg.C and the boiling point of the solvent, preferably between 0 deg.C and room temperature for 30 min- several hr and b) reacting the resultant compound of formula III without separat ing from the reaction mixture with the compound of formula IV under the above conditions.