公开(公告)号：AT251651T

公开(公告)日：2003-10-15

申请号：AT98124438

申请日：1998-12-22

Applicant: BASF AG

Inventor： BEER WULF FRIEDEMANN DR ,  BEISER KLAUS ,  CIPRIAN JUERGEN DR ,  FRANZ LOTHAR DR ,  FRANZISCHKA WOLFGANG DR ,  PALM CHRISTOF DR ,  PAPE FRANK-FRIEDRICH DR ,  PAUL AXEL DR ,  PESSEL ULRICH-DIETER ,  WECK ALEXANDER

IPC: B01J39/04 ,  B01J39/05 ,  B01J47/02 ,  B01J47/026 ,  B01J49/00 ,  B01J49/06 ,  C08F6/08 ,  C08G65/20 ,  C08G65/30 ,  C08G65/331 ,  C08J5/20

Abstract: The production of a hydroxyl group containing polymer, preferably polytetrahydrofuran, by ester exchange of the corresponding acyloxy group containing polymer with alcohol in the presence of a sodium containing catalyst involves separation of the sodium cation using a catalytic amount of water by passage through an ion exchange material.

公开(公告)号：DE19500236A1

公开(公告)日：1996-07-11

申请号：DE19500236

申请日：1995-01-05

Applicant: BASF AG

Inventor： DOSTALEK ROMAN DR ,  FISCHER ROLF DR ,  HARDER WOLFGANG DR ,  PAUL AXEL DR ,  PINKOS ROLF DR

IPC: C07C29/88 ,  C07C31/20 ,  C07C55/14 ,  C07C59/01 ,  C07C29/94 ,  C07C59/285 ,  C07C51/487

Abstract: A process for separating impurities from aqueous solutions of hexane diol-1,6 preliminary compounds like adipine and 6-hydroxy capronic acid, comprising the addition of at least one carboxylic acid to a solution (a) of hexane diol-1,6 and subjecting said solution (a) or a solution (b) containing carboxylic acid(s) as preliminary compounds of hexane diol-1,6 to a heat treatment at temperatures above room temperature in the absence of hydrogen.

公开(公告)号：DE3719872A1

公开(公告)日：1988-12-29

申请号：DE3719872

申请日：1987-06-13

Applicant: BASF AG

Inventor： PAUL AXEL DR ,  TONNE PETER DR ,  ROSKE ECKHARD ,  SIEGEL HARDO DR

IPC: C07C229/08 ,  C07C67/00 ,  C07C227/00 ,  C07C227/08 ,  C07C227/32 ,  C07C101/08

Abstract: Enantiomerically pure D- or L-alanine is prepared by reaction of an optically active chloropropionic acid with ammonia in water or water/alcohol mixtures at 50 to 110 DEG C.

公开(公告)号：DE59207831D1

公开(公告)日：1997-02-20

申请号：DE59207831

申请日：1992-08-05

Applicant: BASF AG

Inventor： BACH VOLKER DR ,  BROX WOLFGANG DR ,  ETZBACH KARL-HEINZ DR ,  PAUL AXEL DR ,  SIEMENSMEYER KARL DR

IPC: C07C69/708 ,  C07C69/712 ,  C07C69/734 ,  C07C69/74 ,  C07C69/753 ,  C07C69/757 ,  C07C69/76 ,  C07C69/773 ,  C07C69/86 ,  C07C69/92 ,  C07C69/94 ,  C08F20/30 ,  C08G63/02 ,  C08G63/60 ,  C09K19/04 ,  C09K19/06 ,  C09K19/12 ,  C09K19/20 ,  C09K19/58

Abstract: Optically active compounds of the formula I in which the indices and variables have the following meanings: R is a C1-C12-alkyl or -perfluoroalkyl group in which, in addition, one or two non-adjacent CH2 or CF2 groups may be replaced by O atoms and/or -CO- groups and/or -CO-O- groups and/or -CH=CH- groups and/or -CH-halogen- and/or -CHCN- groups and/or -O-CO-CH-halogen- and/or -O-CO-CHCN- groups, or is a C1-C12-alkyl group which may carry a terminal chemically reactive group and in which one CH2 group may be replaced by an O atom, A and A , independently of one another, are 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl- and/or Br atoms and/or CH3 groups and/or CN groups, and in which one or two CH groups may be replaced by N, 1,4-cyclohexylene in which, in addition, one or two non-adjacent CH2 groups may be replaced by O atoms and/or S atoms, piperidine-1,4-diyl, 1,4-bicyclo[2.2.2]octylene, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl, A is optionally substituted phenyl, Z is -CO-O, -O-CO-, -CH2CH2-, -OCH2-, -CH2O-, -CIC- or a single bond, m is 0, 1, 2 or 3 with the proviso that, if m = 2 or 3, the radicals R and Z in the individual groups -(A -Z) may be identical to or different from one another. The compounds according to the invention are used as components of chiral, tilted, smectic, liquid-crystalline phases.

公开(公告)号：DE3819467A1

公开(公告)日：1989-12-14

申请号：DE3819467

申请日：1988-06-08

Applicant: BASF AG

Inventor： URBAN DIETER DR ,  LADNER WOLFGANG DR ,  PAUL AXEL DR ,  SANNER AXEL DR

IPC: C12N11/08 ,  C12P17/02 ,  C12P41/00

Abstract: Process for preparing a biocatalyst by mixing a) polyolefin fibres which have been rendered hydrophilic, b) crude porcine pancreatic lipase, c) at least one water-soluble dihydric to hexahydric alcohol with 2 to 6 carbon atoms and d) an aqueous buffer solution of pH 5 to 9 at 0 to 40 DEG C, filtering after 1 minute to 3 days, and washing the filter cake, and the use of the biocatalyst obtained in this way for resolving esters of racemic alcohols in aqueous medium.

公开(公告)号：DE59009645D1

公开(公告)日：1995-10-19

申请号：DE59009645

申请日：1990-05-07

Applicant: BASF AG

Inventor： ETZBACH KARL-HEINZ DR ,  WAGENBLAST GERHARD DR ,  BROX WOLFGANG DR ,  PAUL AXEL DR ,  BACH VOLKER DR

IPC: G02F1/13 ,  C07C69/92 ,  C07C69/94 ,  C07C327/22 ,  C07C327/26 ,  C07D303/16 ,  C08F20/26 ,  C08F20/30 ,  C09K19/10 ,  C09K19/20 ,  C09K19/32 ,  C09K19/38 ,  G11B7/24 ,  G11B7/25

公开(公告)号：ES2053677T3

公开(公告)日：1994-08-01

申请号：ES88117889

申请日：1988-10-27

Applicant: BASF AG

Inventor： URBAN DIETER DR ,  LADNER WOLFGANG DR ,  PAUL AXEL DR

IPC: C12N11/08 ,  C12P41/00

Abstract: A biocatalyst is produced by mixing… a) an insoluble, only slightly swellable copolymer of an N-vinyllactam with a cyclic amide which contains at least two ethylenically unsaturated copolymerisable groups, of which at least one is bonded directly to the amide nitrogen,… b) crude pig pancreatic lipase,… c) at least one water-soluble dihydric to hexahydric alcohol with 2 to 6 carbon atoms and… d) an aqueous buffer solution of pH 5 to 9… at 0 to 40 DEG C, filtering after 1 minute to 3 days and washing the filter cake, and is used for resolving esters of racemic alcohols.

公开(公告)号：DE3877143D1

公开(公告)日：1993-02-11

申请号：DE3877143

申请日：1988-10-27

Applicant: BASF AG

Inventor： URBAN DIETER DR ,  LADNER WOLFGANG DR ,  PAUL AXEL DR

IPC: C12N11/08 ,  C12P41/00

Abstract: Prodn. of biocatalysts is effected by (a) mixing a carrier with crude porcine pancreatic lipase (PPL), an aq. buffer soln. (pH 5-9) and a water-soluble 2-6C polyol contg. 2-6 OH gps., at 0-40 deg.C, (b) filtering the mixt. after 1 min. to 3 days and (c) washing the filter cake. The carrier is a powdered, insoluble, only slightly swellable copolymer of (i) an N-vinyl 4-6C lactam and (ii) a cyclic amide contg. at least two ethylenically unsatd. copolymerisable gps..

公开(公告)号：DE3866434D1

公开(公告)日：1992-01-09

申请号：DE3866434

申请日：1988-06-08

Applicant: BASF AG

Inventor： PAUL AXEL DR ,  PETER TONNE DR ,  ROSKE ECKHARD ,  SIEGEL HARDO DR

IPC: C07C229/08 ,  C07C67/00 ,  C07C227/00 ,  C07C227/08 ,  C07C227/32

Abstract: In a new process for the prodn. of D- or L-alanine of high enantiomeric purity, an optically active chloropropionic acid of high enantiomeric purity is reacted with ammonia or ammonia-yielding cpds. at 50-110 deg. C in water or water/alcohol mixt. The pref. ammonia-yielding cpd. is urotropin (hexamethylene tetramine), although the reaction is pref. carried out with a mixt. of ammonia and urotropin Ammonia and ammonia-yielding cpd. are pref. used in an amt. of at least 2 mol per mol chloropropionic acid. The reaction is pref. carried out at 50-90 frg. C and pH 6-9.

公开(公告)号：ES2131356T3

公开(公告)日：1999-07-16

申请号：ES96102839

申请日：1996-02-26

Applicant: BASF AG

Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  BREITSCHEIDEL BORIS DR ,  HARDER WOLFGANG DR ,  LUYKEN HERMANN ,  PAUL AXEL DR

IPC: B01J23/46 ,  B01J23/75 ,  B01J23/755 ,  C07B61/00 ,  C07C209/48 ,  C07C211/36

Abstract: Prepn. of 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophorone diamine; IPDA) from 3-cyano-3,5,5-trimethyl-cyclohexanone (isophorone nitrile; IPN) is carried out in three separate reaction zones by: (a) reacting IPN with excess liquid NH3 at 20-150 deg.C and 50-300 bar; (b) hydrogenating the reaction prod. with H2 in the presence of excess NH3 at 50-100 deg.C and 50-300 bar; and (c) hydrogenating the reaction prod. with N2 at 110-160 deg.C and 150-300 bar. Acidic metal oxide catalyst is used in stage (a); and hydrogenation catalyst, opt. with basic components or on neutral or basic supports, in stages (b) and (c).