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公开(公告)号:DE3229026A1
公开(公告)日:1984-02-09
申请号:DE3229026
申请日:1982-08-04
Applicant: BASF AG
Inventor: HALBRITTER KLAUS DR , EGGERSDORFER MANFRED DR
IPC: C07D307/60
Abstract: 1. A process for the preparation of 4,4-dimethyltetrahydrofuran-2,3-dione (I), wherein a dimethylpyruvate (II) is reacted with formaldehyde or a formaldehyde donor at 80-150 degrees C.
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公开(公告)号:DE59501599D1
公开(公告)日:1998-04-16
申请号:DE59501599
申请日:1995-11-17
Applicant: BASF AG
Inventor: SCHUSTER LUDWIG DR , EGGERSDORFER MANFRED DR
IPC: B01J27/199 , C07B61/00 , C07C29/132 , C07C29/60 , C07C31/20
Abstract: Prepn. of propan-1,2-diol (I) comprises catalytic hydrogenation of glycerol at elevated temp. and pressure. Glycerol contg. up to 20 wt.% water and a catalyst (II) are used. (II) contains 40-70 wt.% Co, 10-20 wt.% Cu, 0-10 wt.% Mn and 0-10 wt.% Mo and opt. up to 10 wt.% inorg. polyacid and/or heteropolyacid.
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公开(公告)号:DE4442124A1
公开(公告)日:1996-05-30
申请号:DE4442124
申请日:1994-11-26
Applicant: BASF AG
Inventor: SCHUSTER LUDWIG DR , EGGERSDORFER MANFRED DR
IPC: B01J27/199 , C07B61/00 , C07C29/132 , C07C29/60 , C07C31/20 , B01J23/70 , B01J23/16 , B01J23/75 , B01J23/72 , B01J23/34 , B01J23/28
Abstract: Prepn. of propan-1,2-diol (I) comprises catalytic hydrogenation of glycerol at elevated temp. and pressure. Glycerol contg. up to 20 wt.% water and a catalyst (II) are used. (II) contains 40-70 wt.% Co, 10-20 wt.% Cu, 0-10 wt.% Mn and 0-10 wt.% Mo and opt. up to 10 wt.% inorg. polyacid and/or heteropolyacid.
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公开(公告)号:ES2054640T3
公开(公告)日:1994-08-16
申请号:ES87114098
申请日:1987-09-26
Applicant: BASF AG
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公开(公告)号:DE3786220D1
公开(公告)日:1993-07-22
申请号:DE3786220
申请日:1987-09-26
Applicant: BASF AG
Inventor: BRENNER KARL , EGGERSDORFER MANFRED DR , RUPPEL WILHELM DR , SCHULTHEISS HARALD DR , SCHOLZ HANS-ULRICH DR
IPC: C07B61/00 , B01J23/50 , B01J23/52 , B01J23/72 , C07C45/00 , C07C45/29 , C07C45/37 , C07C45/38 , C07C45/39 , C07C47/21 , C07C49/203 , C07C67/00
Abstract: Continuous prodn. of aliphatic aldehyde and ketones of formula R1-CO-R2 (I) is carried out by oxidn. of an alcohol R1-CH(OH) -R2 (II) with O2 at elevated temp. and in the presence of a catalyst (III), where R1=a satd., or unsatd., linear or branched aliphatic gp. with at least 2C, which can be substd. by alkyl, alkenyl or aryl, or a cycloaliphatic- aliphatic gp.; and R2=H, Me, Ar or as R1; or R1+R2 + the carbonyl C atom = a substd. or unsubstd. 4-12C membered ring, which can have one or more O atoms in the ring. The novel features are that (a) oxidn. is carreid out in a tubular reactor or tube aggregate with tube(s) having an inside dia. of 10-50 mm, (b) the tube(s) is charged with (III) in the form of granular inert material coated with 0.1-20 wt.% Cu, Ag and/or Au; and (c) the ratio of the dia. of the (III) granules to the inside dia. of the tube is 1:10-5.
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公开(公告)号:DE3865957D1
公开(公告)日:1991-12-05
申请号:DE3865957
申请日:1988-12-30
Applicant: BASF AG
Inventor: FRANZ LOTHAR DR , EGGERSDORFER MANFRED DR , VOGES DIETER DR
IPC: C07D233/34 , B01J27/02 , C07B61/00 , C07D233/32 , C07D239/10 , C07D247/02
Abstract: Cyclic N,N'-dimethylurea cpds. of formula (I) in which n = 2 or 3, and prepd. by hydrogenation of cyclic urea cpds. of formula (II) or (III), where m=ocr1, n=2or3. In the presence of hydrogen and a hydrogenation catalyst comprising Pd on an inorganic carrier and additionally contg. S, Se and/or Te.
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公开(公告)号:DE3763406D1
公开(公告)日:1990-08-02
申请号:DE3763406
申请日:1987-12-03
Applicant: BASF AG
Inventor: HENKELMANN JOCHEM DR , EGGERSDORFER MANFRED DR , GROSCH WALTER DR , SCHUHMACHER ALFRED DR , SIEGEL HARDO DR
IPC: B01J27/125 , C07B61/00 , C07C45/00 , C07C45/46 , C07C51/00 , C07C51/083 , C07C51/373 , C07C65/34 , C07C67/00
Abstract: Alkyl-substituted aromatic ketones are prepared by reacting alkylbenzenes with carboxylic anhydrides in the presence of a Friedel-Crafts catalyst by performing the reaction in the presence of a tertiary amine or diamine.
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公开(公告)号:DE3829144A1
公开(公告)日:1990-03-01
申请号:DE3829144
申请日:1988-08-27
Applicant: BASF AG
Inventor: EGGERSDORFER MANFRED DR , BRENNER KARL , HENKELMANN JOCHEM DR , GOETZ NORBERT DR , KUEKENHOEHNER THOMAS DR
IPC: C07D213/50 , C07D231/12 , C07D233/64 , C07D249/08 , C07D277/24
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公开(公告)号:DE3760505D1
公开(公告)日:1989-10-05
申请号:DE3760505
申请日:1987-06-04
Applicant: BASF AG
Inventor: EGGERSDORFER MANFRED DR , SIEGEL HARDO DR , SCHUHMACHER ALFRED DR , GROSCH WALTER DR , HENKELMANN JOCHEM DR
IPC: C07B41/06 , B01J31/00 , B01J31/12 , B01J31/14 , C07B31/00 , C07B61/00 , C07C45/00 , C07C45/46 , C07C49/76 , C07C51/083 , C07C51/373 , C07C65/34 , C07C67/00
Abstract: 1. A process for the acylation of an aromatic by the Friedel-Crafts method, wherein the acylation is carried out in the presence of a metalalkyl or metalalkyl halide of a metal or semimetal of main groups two to five and/or of a metal of subgroups two or four of the Periodic Table.
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公开(公告)号:DE3732015A1
公开(公告)日:1989-04-06
申请号:DE3732015
申请日:1987-09-23
Applicant: BASF AG
Inventor: EGGERSDORFER MANFRED DR , HENKELMANN JOCHEM DR , GROSCH WALTER DR
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