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    Method for preparing diesters of phosphonic acids
    56.
    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

    Applicant: STAUFFER CHEMICAL COMPANY

    Inventor： Reineke, Karl Edward

    IPC: C07F9/40

    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
    58.
    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

    Applicant: STAUFFER CHEMICAL COMPANY

    Inventor： Djafar, Roger Rachid ,  Benke, Alan Henry

    IPC: A01N25/14 ,  A01N57/20

    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.

    Process for preparing tin alkoxides
    59.
    发明公开
    Process for preparing tin alkoxides 失效
    制备丁烷氧化物的方法

    公开(公告)号：EP0252543A3

    公开(公告)日：1989-03-08

    申请号：EP87201065.7

    申请日：1987-06-05

    Applicant: STAUFFER CHEMICAL COMPANY

    Inventor： Greco, Cal Cataldo

    IPC: C07C29/70 ,  C07C31/28 ,  C07C43/13

    CPC classification number: C07C29/70 ,  C07C31/28

    Abstract: Tin tetra-alkoxides absent halogenic impurities are prepared by a two-step process comprising a first step reaction of tin tetrahalide with an alcohol and ammonia. A second step reacts the product of the first step with a metal amide and additional alcohol. An alternative second step reacts the product of the first step with a metal alkoxide.

    Resolution of racemic mixtures of aliphatic acid esters
    60.
    发明公开
    Resolution of racemic mixtures of aliphatic acid esters 失效
    阿魏酸酯的混合物的分解

    公开(公告)号：EP0196625A3

    公开(公告)日：1989-03-01

    申请号：EP86104201.8

    申请日：1986-03-26

    Applicant: STAUFFER CHEMICAL COMPANY

    Inventor： Dahod, Samun K. ,  Siuta-Mangano, Patricia

    IPC: C12P41/00 ,  C12P7/40

    CPC classification number: C12P41/005 ,  C12P7/40

    Abstract: Racemic mixtures of partially water-soluble esters defined by the formula
    wherein R and R 1 represent hydrogen and C,-C 4 alkyl;
    R 2 represents C 1 -C 4 alkyl and X represents halogen, aliphatic or aromatic groups and substituted derivatives thereof wherein R, R 1 and X are different can be resolved by reducing the water solubility of a racemic mixture of said esters by means other than changing the chemical composition of the ester, contacting the racemic mixture of esters of reduced water solubility with a lipase enzyme from Candida cylindracea capable of stereospecifically resolving the racemic mixture by hydrolysis and stereospecifically resolving the racemic mixture.

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