22.
    发明专利
    未知

    公开(公告)号:DE19523151A1

    公开(公告)日:1996-08-14

    申请号:DE19523151

    申请日:1995-06-29

    Applicant: BASF AG

    Abstract: A process for preparing optically active primary and secondary heteroatom-substituted amines from the corresponding racemates is characterised in that (a) a racemic heteroatom-substituted amine is enantioselectively acylated in the presence of a hydrolase with an ester whose acid component bear a fluorine, nitrogen, phosphorus, oxygen or sulphur atom next to the carbonyl carbon atom; (b) the mixture of optically active heteroatom-substituted amine and optically active acylated heteroatom-substituted amine is separated in order to produce an enantiomer of the heteroatom-substituted amine; (c) the other enantiomer of the heteroatom-substituted amine is optionally extracted from the acylated heteroatom-substituted amine by amide cleavage.

    24.
    发明专利
    未知

    公开(公告)号:DE59200244D1

    公开(公告)日:1994-07-21

    申请号:DE59200244

    申请日:1992-11-12

    Applicant: BASF AG

    Abstract: Hydroxypyridone carboxamides of the formula I in which the substituents have the following meanings: X is oxygen or sulphur; R and R independently of one another are hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or alkoxy, where the abovementioned organic radicals can optionally be substituted; R is hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, halogen or nitro; R is alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkylthio, phenyl or a 5- or 6-membered heterocyclic, aliphatic or aromatic radical containing one to three hetero atoms selected from the group consisting of oxygen, sulphur or nitrogen, where the abovementioned radicals are optionally substituted; with the exception of 6-methyl-4-hydroxypyrid-2-one-3-carboxamide and N-tert-butyl-6-methyl-4-hydroxypyrid-2-one-3-carboxamide.

    26.
    发明专利
    未知

    公开(公告)号:DE4138819A1

    公开(公告)日:1993-05-27

    申请号:DE4138819

    申请日:1991-11-26

    Applicant: BASF AG

    Abstract: Hydroxypyridone carboxamides of the formula I in which the substituents have the following meanings: X is oxygen or sulphur; R and R independently of one another are hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or alkoxy, where the abovementioned organic radicals can optionally be substituted; R is hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, halogen or nitro; R is alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkylthio, phenyl or a 5- or 6-membered heterocyclic, aliphatic or aromatic radical containing one to three hetero atoms selected from the group consisting of oxygen, sulphur or nitrogen, where the abovementioned radicals are optionally substituted; with the exception of 6-methyl-4-hydroxypyrid-2-one-3-carboxamide and N-tert-butyl-6-methyl-4-hydroxypyrid-2-one-3-carboxamide.

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