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    41.
    发明专利
    未知

    公开(公告)号：DE59503252D1

    公开(公告)日：1998-09-24

    申请号：DE59503252

    申请日：1995-09-30

    Applicant: BASF AG

    Inventor： DOCKNER TONI DR ,  LERMER HELMUT DR ,  RAUH ULRICH ,  NESTLER GERHARD DR

    IPC: B01D11/04 ,  C07B61/00 ,  C07C67/08 ,  C07C67/58 ,  C07C69/54

    Abstract: In the prepn. of a mono(meth)acrylate (I) of a 4-6 C alkandiol (II) from an aq. soln. contg. (I) and (II) by solvent extn., the organic solvent used for extn. is selected from esters (III) of 1-4 C alkanecarboxylic acids and 1-5 C alkanols, simple and mixed 4-8 C dialkyl ethers (IV) and mixts. of these. Also claimed is a method of prepn. and sepg. (I).

    46.
    发明专利
    未知

    公开(公告)号：DE4436242A1

    公开(公告)日：1996-04-18

    申请号：DE4436242

    申请日：1994-10-11

    Applicant: BASF AG

    Inventor： DOCKNER TONI DR ,  LERMER HELMUT DR ,  RAUH ULRICH ,  NESTLER GERHARD DR

    IPC: C07C57/07 ,  C07C67/08 ,  C07C67/58 ,  C07C69/54 ,  C07C31/20

    Abstract: In the sepn. of a di(meth)acrylate (I) of a 4-6 C alkandiol (II) from a mixt. of (II), the mono(meth) acrylate (III) and (I) by extn. with an organic solvent (IV) in the presence of water, the mixt. contg. (I) is supplied to the middle of an extn. column and water and (V) are passed through the column in countercurrent. Also claimed is the prepn. (III), esp. butan-1,4-diol monoacrylate (IIIA).

    48.
    发明专利
    未知

    公开(公告)号：ES2068412T3

    公开(公告)日：1995-04-16

    申请号：ES91104411

    申请日：1991-03-21

    Applicant: BASF AG

    Inventor： MERGER FRANZ DR ,  PRIESTER CLAUS-ULRICH DR ,  KLOPPENHOEFER GERHARD DR ,  HARDER WOLFGANG DR ,  WITZEL TOM DR ,  LERMER HELMUT DR ,  KOEHLER ULRICH DR

    IPC: B01J23/40 ,  B01J23/74 ,  B01J29/06 ,  C07B61/00 ,  C07C209/00 ,  C07C209/26 ,  C07C209/48 ,  C07C211/36

    Abstract: Process for the preparation of 2-(3-aminopropyl)cycloalkylamines of the general formula I in which the index n is an integer from 1 to 4, from 2-(2-cyanoethyl)cycloalkanones of the general formula II in which the index n has the abovementioned meaning, by carrying out the following steps in two reaction spaces spatially separated from one another: a) reacting the 2-(2-cyanoethyl)cycloalkanones of the formula II in a first reaction space with excess ammonia over acidic heterogeneous catalysts at temperatures of 20 to 150 DEG C and pressures of 15 to 500 bar and b) hydrogenating the reaction products in a second reaction space with hydrogen in the presence of excess ammonia over cobalt-, nickel-, ruthenium- and/or other noble metal-containing catalysts which may contain basic components or are present on neutral or basic supports at temperatures of 60 to 150 DEG C and pressures of 100 to 500 bar, and also the novel compound 2-(3-aminopropyl)cyclopentylamine.

    49.
    发明专利
    未知

    公开(公告)号：ES2053860T3

    公开(公告)日：1994-08-01

    申请号：ES89107872

    申请日：1989-04-29

    Applicant: BASF AG

    Inventor： STECK WERNER DR ,  LERMER HELMUT DR ,  RUST HARALD ,  FRITZ GERHARD DR ,  SIEGEL HARDO DR

    IPC: B01J29/86 ,  B01J29/40 ,  B01J29/88 ,  C07B61/00 ,  C07C45/00 ,  C07C45/65 ,  C07C45/67 ,  C07C47/565 ,  C07C67/00

    Abstract: Hydroxybenzaldehydes of the formula (I) are prepared from a benzaldehyde of the formula (II) or its acetal, in which R1 in the R1O-phenyl ether group is an alkyl, cycloalkyl, alkylcycloalkyl or alkylaryl radical, R2 is H or OH or is identical to R1 and one or more R1O-phenyl ether groups are ortho, meta or para to the aldehyde function, by a process in which a benzaldehyde of the formula (II) or its acetal, in which R1 and R2 have the abovementioned meanings and one or more R1O-phenyl ether groups occupy the abovementioned position with respect to the aldehyde function, is converted into a hydroxybenzaldehyde of the formula (I) in the presence of water over a zeolite as a heterogeneous catalyst. The catalysts used are, in particular, zeolites of the pentasil type.

    50.
    发明专利
    未知

    公开(公告)号：DE58903204D1

    公开(公告)日：1993-02-18

    申请号：DE58903204

    申请日：1989-04-29

    Applicant: BASF AG

    Inventor： STECK WERNER DR ,  LERMER HELMUT DR ,  RUST HARALD ,  FRITZ GERHARD DR ,  SIEGEL HARDO DR

    IPC: B01J29/86 ,  B01J29/40 ,  B01J29/88 ,  C07B61/00 ,  C07C45/00 ,  C07C45/65 ,  C07C45/67 ,  C07C47/565 ,  C07C67/00

    Abstract: Hydroxybenzaldehydes of the formula (I) are prepared from a benzaldehyde of the formula (II) or its acetal, in which R1 in the R1O-phenyl ether group is an alkyl, cycloalkyl, alkylcycloalkyl or alkylaryl radical, R2 is H or OH or is identical to R1 and one or more R1O-phenyl ether groups are ortho, meta or para to the aldehyde function, by a process in which a benzaldehyde of the formula (II) or its acetal, in which R1 and R2 have the abovementioned meanings and one or more R1O-phenyl ether groups occupy the abovementioned position with respect to the aldehyde function, is converted into a hydroxybenzaldehyde of the formula (I) in the presence of water over a zeolite as a heterogeneous catalyst. The catalysts used are, in particular, zeolites of the pentasil type.

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