| 摘要 |
NEW MATERIAL:O-Ethyl S-sec-butyl O-2,2,3,3,-tetrafluoro-1-propylphosphoro thiolate expressed by formula I. USE:A soil insecticide and nematocide. PREPARATION:For example, a thiophosphoryl halide expressed by formula II (Hal is halogen), e.g. O-ethyl S-sec-butyl phosphorochloridothioate, etc., is reacted with alcohols expressed by the formula M-OCH2CF2CHF2 (M is H or alkali metal), e.g. 2,2,3,3-tetrafluoro-1-propanol, etc., in the presence of a diluent, e.g. toluene, etc., preferably at -10-+100 deg.C.
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