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    THE PREPARATION OF CARBOXYLIC ACID DERIVATIVES
    141.
    发明专利
    THE PREPARATION OF CARBOXYLIC ACID DERIVATIVES 未知

    公开(公告)号：MY117672A

    公开(公告)日：2004-07-31

    申请号：MYPI9601688

    申请日：1996-05-04

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD

    IPC: C07C231/06 ,  C07B61/00 ,  C07D213/79 ,  C07C67/22 ,  C07C69/34 ,  C07C233/02 ,  C07D213/80 ,  C07D213/803 ,  C07D213/81 ,  C07D213/82 ,  C07D213/84

    Abstract: A PROCESS FOR PREPARING CARBOXYLIC ACID DERIVATIVES OF THE GENERAL FORMULA IWHERE X IS OR2 OR NH2,RL IS CL-C20-ALKYL, CL-C20-HYDROXYALKYL, C3-C12-CYCLOALKYL, C4-C12-ALKYLCYCLOALKYL, C4-C12-CYCLOALKYLALKYL,C5-C20-ALKYLCYCLO-ALKYLALKYL, ARYL, C7-C20-ARALKYL, C7-C20-ALKYLARYL, A HETERO-ALIPHATIC OR HETEROAROMATIC RING WITH 5 TO 8 CARBON ATOMS ANDR2 IS CL-C20-ALKYL,FROM CARBONITRILES OF THE GENERAL FORMULA IIWHERE RL HAS THE ABOVEMENTIONED MEANINGS, AND ALCOHOLS OF THE GENERAL FORMULA III .WHERE R2 HAS THE ABOVEMENTIONED MEANINGS, AT FROM 50 TO 300°C UNDER FROM 0.1 TO 350 BAR IN THE PRESENCE OF A HETEROGENEOUS CATALYST, WHEREIN THE REACTION IS CARRIED OUT IN LIQUID PHASE.

    143.
    发明专利
    未知

    公开(公告)号：ES2196568T3

    公开(公告)日：2003-12-16

    申请号：ES98929277

    申请日：1998-04-30

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  FISCHER ROLF

    IPC: C07D201/08

    Abstract: The disclosure is a process for preparing cyclic lactams of the formula I:whereR1 is hydrogen, alkyl, cycloalkyl or aryl, andA is C3-C12-alkylene unsubstituted or substituted by 1, 2, 3, 4, 5 or 6 substituents selected independently of one another from the group consisting of alkyl, cycloalkyl and aryl,by conversion of an omega-aminocarbonitrile of the formula II:where R1 and A are each as defined above, in the presence of at least one catalyst, which comprises converting said nitrile II into an oligomer mixture, and treating with superheated steam.

    144.
    发明专利
    未知

    公开(公告)号：AT236875T

    公开(公告)日：2003-04-15

    申请号：AT95924256

    申请日：1995-06-16

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  WITZEL TOM

    IPC: C07D201/08

    Abstract: Cyclic lactams are prepared by reacting an aminocarboxylic acid compound of the formula I H2N-(CH2)m-COR1 I where R1 is -OH, -O-C1-C12-alkyl or -NR2R3 and R2 and R3, independently of one another, are each hydrogen, C1-C12-alkyl or C5-C8-cycloalkyl and m is an integer from 3 to 12, with water by a process in which the reaction is carried out in the liquid phase using a heterogeneous catalyst.

    145.
    发明专利
    未知

    公开(公告)号：BR0110483A

    公开(公告)日：2003-04-08

    申请号：BR0110483

    申请日：2001-04-30

    Applicant: BASF AG

    Inventor： BASSLER PETER ,  BAUMANN DIETER ,  FISCHER ROLF-HARTMUTH ,  FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  OHLBACH FRANK

    IPC: C07D223/12 ,  C07D201/08

    Abstract: A process for the preparation of caprolactam is provided, whereina) a mixture (I) containing 6-aminocapronitrile and water is reacted in the gas phase, in the presence of a catalyst, to give a mixture (II) containing caprolactam, ammonia, water, high-boiling components and low-boiling components,b) ammonia is then removed from the mixture (II) to give a mixture (III) containing caprolactam, water, high-boiling components and low-boiling components,c) water is then removed from the mixture (III) to give a mixture (IV) containing caprolactam, high-boiling components and low-boiling components, andd) a solid (V) containing caprolactam is then obtained from the mixture (IV) by crystallization, the proportion by weight of caprolactam in the solid (V) being greater than in the mixture (IV).

    146.
    发明专利
    未知

    公开(公告)号：ES2181276T3

    公开(公告)日：2003-02-16

    申请号：ES98947446

    申请日：1998-08-21

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  FLICK KLEMENS

    IPC: B01J21/06 ,  B01J37/06 ,  C07D201/08 ,  C07D223/10

    Abstract: Cyclic lactams are prepared by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor in the presence of a catalyst which comprises a catalytically active oxide, which has no soluble constituents under the reaction conditions and which consists of shaped articles obtainable by shaping the oxide into shaped articles and, before or after said shaping, treating the oxide with from 0.1 to 30% by weight, based on the oxide, of an acid in which the oxide is sparingly soluble.

    148.
    发明专利
    未知

    公开(公告)号：ES2173162T3

    公开(公告)日：2002-10-16

    申请号：ES95900739

    申请日：1994-11-15

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  WITZEL TOM

    IPC: C07D201/08 ,  C07D223/10

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    149.
    发明专利
    未知

    公开(公告)号：ES2171980T3

    公开(公告)日：2002-09-16

    申请号：ES97935513

    申请日：1997-07-07

    Applicant: BASF AG

    Inventor： RITZ JOSEF ,  ACHHAMMER GUNTHER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  VOIT GUIDO

    IPC: C07C231/06 ,  C07C237/06 ,  C07C253/00 ,  C07C255/24 ,  C07D201/08 ,  C07D201/12 ,  C07D201/16

    Abstract: A process for preparing caprolactam by cyclization of 6-aminocapronitrile in the presence of water at elevated temperature and in the presence or absence of a catalyst and a solvent, comprises a) removing from the cyclization reaction effluent ("reaction effluent I") caprolactam and all components boiling higher than caprolactam ("high boilers"), b) treating the high boilers of stage a) with phosphoric acid and/or polyphosphoric acid at from 200 to 350 DEG C. to obtain a reaction effluent II, and c) removing caprolactam formed and any 6-aminocapronitrile from reaction effluent II of stage b) to obtain separation from unconverted high boilers and acid used.

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