Process for producing dimethyl
(2,2,2-trichloro-1-hydroxyethyl)-phosphonate and granular formulations
thereof
    2.
    发明授权
    Process for producing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate and granular formulations thereof 失效
    二(2,2,2-三氯-1-羟乙基)膦酸二甲酯及其颗粒制剂的制备方法

    公开(公告)号:US5922404A

    公开(公告)日:1999-07-13

    申请号:US939826

    申请日:1997-09-29

    摘要: The present invention relates to an integrated process for synthesizing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate and a process for impregnating the dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate on to inert carrier granules. The process involves adding dimethyl phosphite to a reaction mixture containing chloral under anhydrous, inert conditions. The molar ratio of chloral to dimethyl phosphite used in the reaction mixture is from about 1.0:1.0 to about 1.1:1.0. The impregnation process involves transferring molten dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate into a process vessel and discharging weighed aliquots into a formulation vessel to form a granular product containing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate.

    摘要翻译: 本发明涉及一种合成二甲基(2,2,2-三氯-1-羟基乙基)膦酸酯的方法和将二(2,2,2-三氯-1-羟基乙基)膦酸二甲酯浸渍在 惰性载体颗粒。 该方法包括在无水惰性条件下将亚磷酸二甲酯加入到含有氯醛的反应混合物中。 在反应混合物中使用的氯醛与亚磷酸二甲酯的摩尔比为约1.0:1.0至约1.1:1.0。 浸渍过程包括将熔融的二甲基(2,2,2-三氯-1-羟乙基)膦酸酯转移到处理容器中,并将重质等分试样排入制剂容器中以形成含有二甲基(2,2,2-三氯-1-羟乙基) 1-羟乙基) - 膦酸酯。