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    16.
    发明专利
    未知

    公开(公告)号：DK277889A

    公开(公告)日：1989-12-11

    申请号：DK277889

    申请日：1989-06-07

    Applicant: BASF AG

    Inventor： URBAN DIETER ,  LADNER WOLFGANG ,  PAUL AXEL ,  SANNER AXEL

    IPC: C12N11/08 ,  C12P17/02 ,  C12P41/00

    Abstract: Process for preparing a biocatalyst by mixing a) polyolefin fibres which have been rendered hydrophilic, b) crude porcine pancreatic lipase, c) at least one water-soluble dihydric to hexahydric alcohol with 2 to 6 carbon atoms and d) an aqueous buffer solution of pH 5 to 9 at 0 to 40 DEG C, filtering after 1 minute to 3 days, and washing the filter cake, and the use of the biocatalyst obtained in this way for resolving esters of racemic alcohols in aqueous medium.

    18.
    发明专利
    未知

    公开(公告)号：DE50011119D1

    公开(公告)日：2005-10-13

    申请号：DE50011119

    申请日：2000-03-17

    Applicant: BASF AG

    Inventor： DITRICH KLAUS ,  LADNER WOLFGANG ,  MELDER JOHANN-PETER

    IPC: C07B53/00 ,  C07C209/62 ,  C07C211/27 ,  C07C211/29

    Abstract: The present invention relates to a process for hydrolyzing optically active amides to carboxylic acids and optically active amines with retention of the center of chirality, where the hydrolysis of the amides is carried out with an alkali metal or alkaline earth metal hydroxide in the presence of 5-30% by weight, based on the amide employed, of a polyol or an amino alcohol.

    19.
    发明专利
    未知

    公开(公告)号：DE59606235D1

    公开(公告)日：2001-01-25

    申请号：DE59606235

    申请日：1996-05-07

    Applicant: BASF AG

    Inventor： NUEBLING CHRISTOPH ,  LADNER WOLFGANG

    IPC: C07C213/02 ,  C07C213/08 ,  C07C213/10 ,  C07C217/52 ,  C07C233/23 ,  C07C271/24 ,  C07C271/56

    Abstract: PCT No. PCT/EP96/01884 Sec. 371 Date Oct. 28, 1997 Sec. 102(e) Date Oct. 28, 1997 PCT Filed May 7, 1996 PCT Pub. No. WO96/35660 PCT Pub. Date Nov. 14, 1996A process for preparing enantiomerically pure cis-1-amino-2-hydroxyindane, which comprises a) converting racemic trans-1-aminoindan-2-ol with acids or acid derivatives of the general formula RCOX by conventional methods into amides of type A A b) adding seed crystals of one enantiomer to a super-saturated solution or melt of the racemic amide A, c) isolating the crystals which have separated out, and again supersaturating the remaining mother liquor or melt after dissolving racemic amide A, and adding seed crystals of the other enantiomer, leading to selective crystallization of the latter, d) converting the resulting enantiomerically pure trans amide by conventional methods into the enantiomerically pure cis-1-amino-2-hydroxyindane.

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