METHOD FOR PRODUCING ALCOHOLS FREE OF ENANTIOMERS

    公开(公告)号:CA2275494A1

    公开(公告)日:1998-08-27

    申请号:CA2275494

    申请日:1998-02-09

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing enantiomer-free alcohols of formula (I) (Ia or Ib), in which the substituents represent the following; R1 represents hydrogen or a substituted or unsubstituted C1-C6-alkyl-, C1-C6-alkoxy-, or C1-C6-alkanoyl-; R2 and R3 independently of each other represent hydrogen or a substituted or unsubstituted C1-C6-alkyl-, C1-C6-alkoxy-, or C1C6-alkanoyl-, C1-C6-alkylthio-, C1-C6-alkyl sulfinyl- or C1-C6-alkyl sulfonyl; and R4 is a substituted or unsubstituted C1-C6-alkyl-, C3-C6-cycloalkyl-. Said method is characterized in that compounds of formula (II), in which the substituents R1 to R4 have the meaning given above, are reduced to compounds of formula (I) in an aqueous solution, in the presence of a carbon source and a microorganism or a reducing agent and an enzyme.

    3.
    发明专利
    未知

    公开(公告)号:DK0925368T3

    公开(公告)日:2002-03-25

    申请号:DK98909424

    申请日:1998-02-09

    Applicant: BASF AG

    Abstract: A process for preparing enantiomerically pure alcohols of the formula I (Ia or Ib)where the substituents have the following meanings:R1hydrogen or substituted or unsubstituted C1-C6-alkyl, C1-C6-alkoxy or C1-C6-alkanoyl,R2 and R3independently of one another hydrogen or substituted or unsubstituted C1-C6-alkyl, C1-C6-alkoxy, C1-C6-alkanoyl, C1-C6-alkylthio, C1-C6-alkylsulfinyl or C1-C6-alkylsulfonyl,R4substituted or unsubstituted C1-C6-alkyl, C3-C8-cycloalkyl,which comprises reducing compounds of the formula II where the substituents R1 to R4 have the abovementioned meanings in aqueous solution in the presence of a carbon source and of a microorganism or of a reducing agent, of a cofactor and of an enzyme, to compounds of the formula I.

    4.
    发明专利
    未知

    公开(公告)号:DE19814528A1

    公开(公告)日:1999-10-07

    申请号:DE19814528

    申请日:1998-04-01

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing 2-(4-hydroxyphenoxy)-propionic acid from 2-phenoxy propionic acid or the salts thereof by means of a micro-organism which is capable of converting 2-phenoxy propionic acid into 2-(4-hydroxyphenoxy)-propionic acid. The invention is characterized in that the micro-organism contains at least one of the genes contained in the sequences SEQ ID no. 1 or SEQ ID no. 4 or their functional equivalents. The invention also relates to isolated DNA sequences with the SEQ ID no. 1 or SEQ ID no. 4 and to a gene product containing these sequences. The invention further relates to a micro-organism containing the gene product and to the use of the sequences and the gene product for producing 2-(4-hydroxyphenoxy)-propionic acid.

    6.
    发明专利
    未知

    公开(公告)号:DE59502693D1

    公开(公告)日:1998-08-06

    申请号:DE59502693

    申请日:1995-04-12

    Applicant: BASF AG

    Abstract: A process for the biotransformation of carboxylic acids in the presence of a microorganism in which the best possible concentration of undissociated carboxylic acid for biotransformation is set by controlling the pH throughout the biotransformation process.

    8.
    发明专利
    未知

    公开(公告)号:DE59802891D1

    公开(公告)日:2002-03-14

    申请号:DE59802891

    申请日:1998-02-09

    Applicant: BASF AG

    Abstract: A process for preparing enantiomerically pure alcohols of the formula I (Ia or Ib)where the substituents have the following meanings:R1hydrogen or substituted or unsubstituted C1-C6-alkyl, C1-C6-alkoxy or C1-C6-alkanoyl,R2 and R3independently of one another hydrogen or substituted or unsubstituted C1-C6-alkyl, C1-C6-alkoxy, C1-C6-alkanoyl, C1-C6-alkylthio, C1-C6-alkylsulfinyl or C1-C6-alkylsulfonyl,R4substituted or unsubstituted C1-C6-alkyl, C3-C8-cycloalkyl,which comprises reducing compounds of the formula II where the substituents R1 to R4 have the abovementioned meanings in aqueous solution in the presence of a carbon source and of a microorganism or of a reducing agent, of a cofactor and of an enzyme, to compounds of the formula I.

Patent Agency Ranking