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    41.
    发明专利
    未知

    公开(公告)号：DE19713383A1

    公开(公告)日：1998-10-08

    申请号：DE19713383

    申请日：1997-04-01

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  BREITSCHEIDEL BORIS DR ,  BECKER RAINER DR ,  NEUHAUSER HORST DR

    IPC: B01J23/44 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C213/02 ,  C07C215/08 ,  C07C211/08 ,  C07C209/22 ,  C07B43/04 ,  B01J23/38 ,  B01J23/70

    Abstract: Preparation of mono- or polyfunctional tertiary amines of formula X(CH2NR1R2)n (I) involves reacting a nitrile of formula (R1R2NCH2)n-mX(CN)m (II) with a secondary amine of formula NHR1R2 (III) and hydrogen. The reaction is at 50-250 degrees C and 5-350 bars, in presence of a palladium-based catalyst (IV), comprising (based on total catalyst) 0.1-10 wt.% palladium and 0.01-10 wt.% of at least one other metal, selected from Group IB and VIII elements, cerium and lanthanum, on a carrier. In (I)-(III), R1, R2 = 1-20C alkyl, 3-8C cycloalkyl, 4-20C alkylcycloalkyl, 4-20C cycloalkylalkyl, aryl, 7-20C alkaryl, 7-20C aralkyl, 2-8C hydroxyalkyl, 2-8C mercaptoalkyl or 8-20C aryloxyalkyl; or R1 + R2 = optionally unsaturated 2-6C alkylene chain (optionally substituted by 1-3 1-4C alkyl and optionally interrupted by O); X = n-valent 1-20C alkyl, 2-20C alkenyl or 3-8C cycloalkyl group (optionally substituted by 1-20C alkyl, 3-8C cycloalkyl, 4-20C alkylcycloalkyl, 4-20C cycloalkylalkyl, 2-20C alkoxyalkyl, aryl, 7-20C alkaryl, 7-20C aralkyl, 1-20C alkoxy, OH, 1-20C hydroxyalkyl, 1-20C alkylamino, 2-20C dialkylamino, 2-12C alkenylamino, 3-8C cycloalkylamino, arylamino, diarylamino, aryl-(1-8C)alkylamino, halo, SH, 2-20C alkenyloxy, 3-8C cycloalkoxy, aryloxy or 2-8C alkoxycarbonyl); n = 1-4; and m = 1 to n. Also claimed is the use of (IV) as catalyst for the reaction of secondary amines with nitriles and hydrogen to give tertiary amines in general.

    42.
    发明专利
    未知

    公开(公告)号：DE19704615A1

    公开(公告)日：1998-08-13

    申请号：DE19704615

    申请日：1997-02-07

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  OHLBACH FRANK DR

    IPC: B01J23/44 ,  C07C209/52 ,  C07C209/70 ,  C07C209/84 ,  C07C211/12 ,  C07D295/02 ,  C07D295/023

    Abstract: The invention relates to a method for hydrogenating a compound from the group of imines or enamines (I) to an amine (II) in the presence of a nitrile (III), whereby said nitrile (III) is essentially not hydrogenated. The method is characterized in that a mixture containing a compound (I) and a nitrile (III) is reacted in the presence of a catalyst (IV) with a gas containing molecular hydrogen.

    PROCESS FOR PREPARING CAPROLACTAM
    45.
    发明专利
    PROCESS FOR PREPARING CAPROLACTAM 未知

    公开(公告)号：CZ357797A3

    公开(公告)日：1998-04-15

    申请号：CZ357797

    申请日：1996-05-07

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  MELDER JOHANN PETER DR ,  SCHNURR WERNER DR ,  FISCHER ROLF DR

    IPC: C07D201/08 ,  C07D223/12

    Abstract: A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formulaand conducting the reaction in liquid phase in the presence of a heterogeneous catalyst. Also describes a process for preparing said tetrahydroazepine derivative I and its use for preparing caprolactam and polycaprolactam.

    48.
    发明专利
    未知

    公开(公告)号：DE4443125A1

    公开(公告)日：1996-06-05

    申请号：DE4443125

    申请日：1994-12-03

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  ACHHAMMER GUENTHER DR

    IPC: C07D201/08 ,  C07D223/10

    Abstract: Method for preparing caprolactam by heating 6-aminocapric acid nitrile in the presence of heterogeneous catalysts ans water under elevated pressure, wherein (a) 6-aminocapric acid nitrile or a mixture containing essentially 6-aminocapric acid nitrile as well as water and a low-boiling or a high-boiling alcohol is heated in the presence of a heterogeneous catalyst in a reactor A to produce a mixture (I); then (b) mixture (I) is distilled, yielding a head fraction, caprolactam and a bottom product, with any ammonia in mixture (I) being removed prior to distillation; and then (c1) the head fraction is fed into the reactor of step (a), with the head fraction optionally being mixed with the alcohol and/or water and/or 6-aminocapric nitrile used in step (a) before being fed into reactor (A); or (c2) the head fraction, optionally with the bottom product from step (b), is fed into a reactor (B), the first fraction optionally being mixed with the alcohol and/or water and/or 6-aminocapric acid nitrile before being fed into reactor (B), and then analogously to step (b) caprolactam is produced by distillation; and either (d1) the bottom product from step (b) is fed into reactor A of step (a); or (d2) optionally water and possibly a low-boiling or a high-boiling alcohol are added to the bottom product which then, analogously to step (a) is heated in a reactor (C) to give a reaction product which is distilled to yield caprolactam; or (d3) water is added to the bottom product which is heated in a reactor (D) without added catalyst to give a reaction product which is distilled to yield caprolactam; or (d4) water and a base are added to the bottom product which is heated in reactor (E) to give a reaction product which is distilled to yield caprolactam.

    49.
    发明专利
    未知

    公开(公告)号：DE4442727A1

    公开(公告)日：1996-06-05

    申请号：DE4442727

    申请日：1994-12-01

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD DR ,  WITZEL TOM DR

    IPC: C07D201/12 ,  C07D233/10 ,  C08J11/10 ,  C08L77/00

    Abstract: Caprolactam is prepared by cleaving oligomers or polymers containing essentially the repeating unit -[-N(H)-(CH2)5-C(O)-]- in the presence of a catalyst at elevated temperatures by a process in which the cleavage is carried out in the liquid phase in the presence of a heterogeneous catalyst and of an organic solvent.

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