| abstract |
NEW MATERIAL: A compd. expressed by formula I. In formula I, Q is O or S; R 1 is (halogen substd.) alkyl, alkoxy, alkylthio, (substd.)benzyl, phenyl, (di) alkylamino; R 2 is (halogen substd.) alkyl, alkoxy, alkylthio or (di)alkylamino. n EXAMPLE: Thiophosphoric acid O-ethyl S-propyl O-2',2,3,4,4,4-hexafluoropropyl expressed by formula II. n USE: A biocide. Especially suitable for controlling insects and nematodes in soil. n PREPARATION: (Thio)phosphoric acid chloride expressed by formula III is allowed to react with hexafluorobutanol expressed by formula IV in the presence of a proper acid acceptor and in the presence of a proper diluent. n COPYRIGHT: (C)1989,JPO |