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    Method for extracting lactic acid from aqueous suspensions
    42.
    发明专利
    Method for extracting lactic acid from aqueous suspensions 未知

    公开(公告)号：AU2006271693A1

    公开(公告)日：2007-01-25

    申请号：AU2006271693

    申请日：2006-07-17

    Applicant: BASF AG

    Inventor： LEBKUCHER HELMUT ,  REISSENWEBER GERNOT

    IPC: C07C51/48 ,  C07C59/08

    Abstract: The invention relates to a method for the continuous extraction of lactic acid from an aqueous suspension containing solids. According to said method, the aqueous suspension containing solids is brought into contact, in a counter-current, with an organic solvent that is partially miscible with water, in a column provided with filling agents which have a surface consisting of hydrophobic material, in such a way as to form an aqueous phase and an organic phase, such that the organic phase is guided as a dispersed phase in a section of the column comprising filling agents.

    PROCESS FOR THE MANUFACTURE OF 5-DICHLOROACETYL-3,3,6-TRIMETHYL-9-OXO-1,5-DIAZABICYCLO[4.3.0]NONANE
    43.
    发明专利
    PROCESS FOR THE MANUFACTURE OF 5-DICHLOROACETYL-3,3,6-TRIMETHYL-9-OXO-1,5-DIAZABICYCLO[4.3.0]NONANE 未知

    公开(公告)号：CA2136872C

    公开(公告)日：2004-01-20

    申请号：CA2136872

    申请日：1993-05-18

    Applicant: BASF AG

    Inventor： REISSENWEBER GERNOT ,  RICHARZ WINFRIED ,  KOOB KNUT

    IPC: A01N43/90 ,  C07D487/04

    Abstract: Described is the preparation of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5- diazabicyclo[4,3,0]nonane (I) by reacting 3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4,3,0]nonane (II) with dichloroacetyl chloride in the presence of a solvent and a base. The reaction is carried out in a two-phase system comprising a practically water - insoluble solvent and water, and sodium or pota- ssium hydroxide is added as the base in proportion to the amount of dichloroacetyl chloride consumed so that the aqueous phase has a pH of 7 to 9. The solid product formed is then separated off.

    2-AMINOCINNAMIC ESTERS
    44.
    发明专利
    2-AMINOCINNAMIC ESTERS 未知

    公开(公告)号：CA2097184C

    公开(公告)日：2002-12-31

    申请号：CA2097184

    申请日：1991-11-16

    Applicant: BASF AG

    Inventor： RUEB LOTHAR ,  EICKEN KARL ,  SCHAEFER BERND ,  REISSENWEBER GERNOT ,  SCHAEFER PETER

    IPC: C07C205/56 ,  C07C229/40 ,  C07C229/44 ,  C07D209/48

    Abstract: The invention concerns the preparation of 3-(3,4,5,6- tetrahydrophthalimido)cinnamic acid esters of formula (I) (R1 = H, halogen; R2, R3 = halogen; R4 = C-organic rest; R5 = H, CH3) by the reductio n of 3-nitrocinnamic acid esters of formula (II) with hydrogen in the presence of a catalyst and the condensation of the 3- aminocinnamic acid esters obtained of formu- la (III) with a 3,4,5,6-tetrahydrophthalic acid anhydride of formula (IV). 3 - (3,4,5,6-tetrahydrophthalimido)cinnamic acid es- ters of formula (I) are useful active agents in the plant-protection field.

    METHOD OF OBTAINING 5-DICHLOROACETYL-3,3,6-TRIMETHYL-9-OKSO-1,5-DIAZABICYCLO [4,3,0] NONANE
    45.
    发明专利
    METHOD OF OBTAINING 5-DICHLOROACETYL-3,3,6-TRIMETHYL-9-OKSO-1,5-DIAZABICYCLO [4,3,0] NONANE 未知

    公开(公告)号：PL173088B1

    公开(公告)日：1998-01-30

    申请号：PL30637993

    申请日：1993-05-18

    Applicant: BASF AG

    Inventor： REISSENWEBER GERNOT ,  RICHARZ WINFRIED ,  KOOB KUNT

    IPC: A01N43/90 ,  C07D487/04

    Abstract: The manufacture of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4.3.0]-nonane I by the reaction of 3,3,6-trimethyl-9-oxo-1,5-diaza-bicyclo[4.3.0]nonane II with dichloroacetyl chloride in the presence of a solvent and a base, wherein a) this reaction is carried out in a two-phase system comprising a virtually water-insoluble organic solvent and water, and sodium or potassium hydroxide acting as the base is metered in at a rate corresponding to the rate of consumption of the dichloroacetyl chloride such that the aqueous phase exhibits a pH of from 7 to 9, and b) the resulting product is separated.

    47.
    发明专利
    未知

    公开(公告)号：DE59303673D1

    公开(公告)日：1996-10-10

    申请号：DE59303673

    申请日：1993-05-18

    Applicant: BASF AG

    Inventor： REISSENWEBER GERNOT ,  RICHARZ WINFRIED ,  KOOB KNUT

    IPC: A01N43/90 ,  C07D487/04

    Abstract: The manufacture of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4.3.0]-nonane I by the reaction of 3,3,6-trimethyl-9-oxo-1,5-diaza-bicyclo[4.3.0]nonane II with dichloroacetyl chloride in the presence of a solvent and a base, wherein a) this reaction is carried out in a two-phase system comprising a virtually water-insoluble organic solvent and water, and sodium or potassium hydroxide acting as the base is metered in at a rate corresponding to the rate of consumption of the dichloroacetyl chloride such that the aqueous phase exhibits a pH of from 7 to 9, and b) the resulting product is separated.

    48.
    发明专利
    未知

    公开(公告)号：AT142210T

    公开(公告)日：1996-09-15

    申请号：AT93912713

    申请日：1993-05-18

    Applicant: BASF AG

    Inventor： REISSENWEBER GERNOT ,  RICHARZ WINFRIED ,  KOOB KNUT

    IPC: A01N43/90 ,  C07D487/04 ,  C07D239/00 ,  C07D209/00

    Abstract: The manufacture of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4.3.0]-nonane I by the reaction of 3,3,6-trimethyl-9-oxo-1,5-diaza-bicyclo[4.3.0]nonane II with dichloroacetyl chloride in the presence of a solvent and a base, wherein a) this reaction is carried out in a two-phase system comprising a virtually water-insoluble organic solvent and water, and sodium or potassium hydroxide acting as the base is metered in at a rate corresponding to the rate of consumption of the dichloroacetyl chloride such that the aqueous phase exhibits a pH of from 7 to 9, and b) the resulting product is separated.

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