| abstract |
NEW MATERIAL:An organic acid anhydride derivative shown by the formulaI (R 1 and R 5 are lower alkyl; R 2 and R 3 are H, lower alkyl; R 4 is lower alkoxy, lower alkyl, phenyl). n USE: An insecticide, acaricide, nematocide. Having activity on Nephotettix cincticeps Uhlera having resistance to various kinds of organic phosphorus type insecticides and carbamate type insecticides. Having low toxicity to mammals and no phytotoxicity to useful plants. n PROCESS: An amidothiophosphoryl halide shown by the formula II (Hal is halogen) is reacted with an alkali salt or ammonium salt of phophoro or phosphonothioate shown by the formula III to give a compound shown by the formulaI. The reaction is preferably carried out in the presence of an acid binder (e.g., TEA) in case of necessity in an inert organic solvent at 0W120°C. n COPYRIGHT: (C)1982,JPO&Japio |