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    33.
    发明专利
    未知

    公开(公告)号：DE102005005946A1

    公开(公告)日：2006-08-17

    申请号：DE102005005946

    申请日：2005-02-10

    Applicant: BASF AG

    Inventor： WISSEL KATHRIN ,  MAASE MATTHIAS ,  HUTTENLOCH OLIVER ,  FLAJS TONI ,  KUHL MELANIE

    IPC: C07F9/50

    Abstract: Method for producing tertiary phosphines by reacting a compound of the general formula (I) in which A is R 1 or L 2 , B is R 2 or L 3 , the R 1 and R 2 radicals are each independently an organic radical having in each case from 1 to 30 carbon atoms, where the R 1 and R 2 radicals may also be joined together; and the leaving groups L 1 to L 3 are each independently halogen, alkyloxy having from 1 to 10 carbon atoms or aryloxy having from 6 to 10 carbon atoms (a) with an alkali metal in an organic aprotic solvent and (b) a compound of the general formula (II) L 4 -R 3 (II) in which the R 3 radical is an organic radical having in each case from 1 to 30 carbon atoms; and the leaving group L 4 is halogen, alkyloxy having from 1 to 10 carbon atoms or aryloxy having from 6 to 10 carbon atoms, in which the resulting reaction mixture is hydrolyzed with an aqueous base which has a pH of >= 10 and the organic phase is removed from the aqueous phase.

    35.
    发明专利
    未知

    公开(公告)号：DE10344434A1

    公开(公告)日：2005-05-12

    申请号：DE10344434

    申请日：2003-09-25

    Applicant: BASF AG

    Inventor： GRIESBACH ULRICH ,  SEITZ VERENA ,  MAASE MATTHIAS

    IPC: C25B3/25 ,  C25B3/04 ,  C07F9/53 ,  C07F9/50 ,  C07B31/00

    Abstract: The invention relates to a method for producing diphenylphosphine oxide (DPPO) or its nucleus-substituted derivatives, diphenylphosphine (DPP) or its nucleus-substituted derivatives or phosphine (PP) or its nucleus-substituted derivatives, starting from triphenylphosphine oxide (TPPO) or the corresponding nucleus-substituted derivatives, or in the case of the production of DPP and PP, starting from triphenylphosphine (TPP) or the corresponding nucleus-substituted derivatives or DPPO. According to said method, the starting products are reduced electrochemically in the presence of ammonia or an amine.

    37.
    发明专利
    未知

    公开(公告)号：TR200402620T4

    公开(公告)日：2004-11-22

    申请号：TR200402620

    申请日：2002-01-11

    Applicant: BASF AG

    Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

    IPC: C07F9/38

    Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

    38.
    发明专利
    未知

    公开(公告)号：AT273315T

    公开(公告)日：2004-08-15

    申请号：AT02708274

    申请日：2002-01-11

    Applicant: BASF AG

    Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

    IPC: C07F9/38

    Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

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