| abstract |
NEW MATERIAL: A compound of formula I {R is (substd.)alkyl, alkenyl, etc.; R 1 is -SR 7 [R 7 is (substd.)alkyl, cycloalkyl, etc.] or formula II (R 8 and R 9 are each H, alkyl, cycloalkyl, etc.); R 2 -R 5 are each H, halogen or alkyl; Y is O or S}. n EXAMPLE: O-Ethyl-S-secondary butyl-S-(1,1-difluoroethyl)dithiophosphate of formula III. n USE: Pesticides, especially insecticides. n PROCESS: A (thio)phosphite (phosphoramidite) and (thio)phosphonite (phosphonamidite) of formula IV is reacted with a 1-fluoroalkylsulfenyl halide of formula V (X is halogen, especially Cl) or a bis(1-fluoroalkyl)disulfane of formula VI optionally in the presence of a diluent. n COPYRIGHT: (C)1991,JPO |