Method for preparing diesters of phosphonic acids
    8.
    发明公开
    Method for preparing diesters of phosphonic acids 失效
    制备磷酸二甲酯的方法

    公开(公告)号:EP0248491A3

    公开(公告)日:1989-04-26

    申请号:EP87201023.6

    申请日:1987-06-01

    CPC classification number: C07F9/40

    Abstract: Dialkylphenylphosphonates are prepared by the reaction of a metal alkoxide with a phenyl phosphonic dihalide. The reactants are combined to give a temperature rise to 60°C within 15 minutes, resulting in improved yields and assay of product.

    Abstract translation: 二烷基苯基膦酸盐通过金属醇盐与苯基膦酸二卤化物的反应来制备。 将反应物合并,在15分钟内升温至60℃,从而提高产物的产率和测定。

    Method of preparation and use of solid, phytoactive compositions
    10.
    发明公开
    Method of preparation and use of solid, phytoactive compositions 失效
    制备和使用固体,物理组合物的方法

    公开(公告)号:EP0256608A3

    公开(公告)日:1989-03-08

    申请号:EP87201554.0

    申请日:1987-08-17

    CPC classification number: C07F9/3813 A01N25/30 A01N57/20 A01N2300/00

    Abstract: A method for the preparation of a solid, phytoactive composition comprising: (a) reacting an acid form of a phytoactive N-phosphonomethyl-­N-carboxylmethyl compound with a liquid amine to form the amine salt of said N-phosphonomethyl-N-carboxylmethyl compound; (b) admixing said amine salt of said N-phosphonomethyl-N-carboxylmethyl compound with a molten surfactant, the surfactant being solid at ambient temperatures; and (c) cooling said mixture to a temperature below the melting point of the sur­factant to form a composition comprising said surfactant and said amine salt of N-phosphonomethyl-N-carboxylmethyl compound interdispersed in the matrix thereof and which is solid at ambient temperatures.

Patent Agency Ranking