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公开(公告)号:NO20024707D0
公开(公告)日:2002-10-01
申请号:NO20024707
申请日:2002-10-01
Applicant: BASF AG
Inventor: HEYDRICH GUNNAR , AUST NICOLA CHRISTIANE , PUETTER HERMANN , FISCHER ANDREAS , BOTZEN JOERG
IPC: C07B61/00 , C07C41/50 , C07C43/303 , C07C47/198 , C07C
Abstract: The production of diacetals (I) of glyoxal (II) from aqueous glyoxal and monohydric alcohols (III) with an acid catalyst (IV) involves leaving a mixture of (III) and (II) in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration. production of diacetals (I) of glyoxal (II) from 40-75 wt% aqueous glyoxal and monohydric alcohols (III) with acid catalyst (IV) involves leaving a mixture of (III) and (II) (mol ratio = at least 15:1) and not more than 8 wt% water in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration (without distilling off more than 5 wt% of the alcohol).
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公开(公告)号:DE19920962A1
公开(公告)日:2000-11-16
申请号:DE19920962
申请日:1999-05-06
Applicant: BASF AG
Inventor: PUETTER HERMANN , FISCHER ANDREAS , GREINDL THOMAS , KESSEL KNUT , KLUGE MICHAEL
IPC: B01D61/44 , C07C227/40 , C07C229/12 , B01D61/42 , C07C277/08 , C07C279/14
Abstract: Production of a sarcosine solution with a predetermined pH comprises subjecting a crude sarcosine solution to bipolar electrodialysis. Independent claims are also included for the following: (1) an integrated process for producing a sarcosine solution with a predetermined pH, comprising: (i) producing a crude sarcosine solution; and (ii) subjecting the solution to bipolar electrodialysis; (2) an integrated process for producing creatine or creatine monohydrate, comprising performing steps (i) and (ii) as in process (1) and reacting the solution from step (ii) with cyanamide.
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公开(公告)号:ES2242072T3
公开(公告)日:2005-11-01
申请号:ES02776994
申请日:2002-09-05
Applicant: BASF AG
Inventor: PUTTER HERMANN , FISCHER ANDREAS
Abstract: Procedimiento para la obtención de ortoésteres de la fórmula general I teniendo los restos el siguiente significado. R1 :hidrógeno, alquilo con 1 a 20 átomos de carbono, alquenilo con 2 a 20 átomos de carbono, alquinilo con 2 a 20 átomos de carbono, cicloalquilo con 3 a 12 átomos de carbono, cicloalquilo con 4 a 20 átomos de carbono-alquilo o arilo con 4 a 10 átomos de carbono, R2, R3: alquilo con 1 a 20 átomos de carbono, cicloalquilo con 3 a 12 átomos de carbono, y cicloalquilo con 4 a 20 átomos de carbono-alquilo, o R2 y R3 forman conjuntamente alquileno con 2 a 10 átomos de carbono, R4: alquilo con 1 a 4 átomos de carbono, oxidándose un compuesto de la fórmula general II en la que los restos R1 a R3 tienen el mismo significado que en la fórmula general I, y R5 significa un resto heterocicloalquilo saturado o insaturado de 5 o 6 eslabones, o un resto heterocicloarilo con hasta 2 heteroátomos, seleccionados a partir del grupo N, O y S, estando enlazado este resto a través de un átomo decarbono, que se encuentra en la proximidad de un heteroátomo, a la parte restante de la molécula, en presencia de alcoholes con 1 a 4 átomos de carbono (alcoholes A) por vía electroquímica.
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公开(公告)号:ES2238501T3
公开(公告)日:2005-09-01
申请号:ES01994702
申请日:2001-11-22
Applicant: BASF AG
Inventor: PUTTER HERMANN , FISCHER ANDREAS
Abstract: Procedimiento para la preparación de acetales de di- (alquilo C1 a C6) de formaldehído, ésteres de tri- (alquilo C1 a C6) del ácido orto-fórmico, acetales de di- (alquilo C1 a C6) de acetaldehído o ésteres de tri- (alquilo C1 a C6) del ácido orto-acético (compuestos 1) mediante la oxidación anódica de 1, 2-di-(alcoxil C1 a C6)-etano o 1, 2-di-(alcoxil C1 a C6)-propano, 1, 1, 2, 2-tetra-(alcoxil C1 a C6)-etano o 1, 1, 2, 2-tetra-(alcoxil C1 a C6)-propano, o 2, 3-di- (alcoxil C1 a C6)-butano (compuestos II) en presencia de un alcohol alcoxílico C1 a C6 (compuestos III), en el que como despolarizador catódico se emplea un compuesto orgánico habitual (compuestos IV), que es apropiado para la reducción electroquímica y en el que la oxidación anódica y la reducción catódica se realizan en una celda de electrólisis no dividida en presencia de alcoholes alquílicos C1 a C6.
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公开(公告)号:AT290616T
公开(公告)日:2005-03-15
申请号:AT01994702
申请日:2001-11-22
Applicant: BASF AG
Inventor: PUETTER HERMANN , FISCHER ANDREAS
Abstract: A method for producing alcoxylated carbonyl compounds of general formula (I) (compounds I): R aR C(OR )b wherein R , R represent hydrogen or C1-C6-alkyl, R independently means C1-C6-alkyl, a is 0 or 1, b 2 or 3 with the proviso that the sum of a and b is 3, by means of anodic oxidation of germinal dialcoxy compounds of general formula (II) (compounds II) wherein R , R , R , R represent hydrogen or C1-C6-alkyl, R , R represent C1-C6-alkyl or C1-C6-alcoxy, in the presence of a C1-C6-alkyl alcohol (compounds III). A usual compound (compound IV) is used as a cathodic depolarizer suitable for electrochemical oxidation. The anodic oxidation and cathodic reduction is carried out in an undivided electrolyte cell in the presence of C1-C6-alkyl alcohols.
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66.
公开(公告)号:PL363989A1
公开(公告)日:2004-11-29
申请号:PL36398902
申请日:2002-02-20
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , BECK CHRISTINE , FISCHER ANDREAS , HARZ HANS-PETER , LOHSCHEIDT MARKUS , LEEMANN MARTIN
Abstract: The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.
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公开(公告)号:DE10207238B4
公开(公告)日:2004-03-11
申请号:DE10207238
申请日:2002-02-21
Applicant: BASF AG
Inventor: FISCHER ANDREAS , PUETTER HERMANN , BOTZEM JOERG , HAAG THOMAS
Abstract: Production of organic compounds by electrochemical reaction of corresponding organic starting compounds at graphite, carbon black or carbon electrodes in a liquid electrolyte comprises addition of a metal salt derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium to the electrolyte whereby the electrolyte has a dielectric constant of less than 20. A process for the production of organic compounds (I) by electrochemical reaction of corresponding organic starting compounds (II) at graphite, carbon black or carbon electrodes in a liquid electrolyte (E) is claimed whereby 0.01 mmol-1 mole of a metal salt (M) (calculated as moles of metal ions per kg of (E)), derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium is added to the electrolyte (E) prior to or during the electrochemical reaction and the composition of the electrolyte (E) is such that (E) has a dielectric constant of less than 20.
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68.
公开(公告)号:CZ20032223A3
公开(公告)日:2003-11-12
申请号:CZ20032223
申请日:2002-02-20
Applicant: BASF AG
Inventor: BALDENIUS KAI-UWE , BECK CHRISTINE , FISCHER ANDREAS , HARZ HANS-PETER , LOHSCHEIDT MARKUS , LEEMANN MARTIN
Abstract: The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.
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公开(公告)号:DE10215899A1
公开(公告)日:2003-10-23
申请号:DE10215899
申请日:2002-04-11
Applicant: BASF AG
Inventor: FISCHER ANDREAS , PUETTER HERMANN , BOTZEM JOERG
Abstract: Electrochemical synthesis comprises electrochemical oxidation of organic starting compound to organic compound on a graphite, carbon black or carbon anode (anode I) with specified metal cathode (cathode I); and pre-roughening anode I by operating as cathode (cathode II) to generate hydrogen with charge of 0.01-100 F and using electrolytes Electrochemical synthesis comprises (I) producing an organic compound (Z) by electrochemical oxidation of an organic starting compound (A) on a graphite, carbon black or carbon anode (anode I) using a cathode (cathode I) of stainless steel, a sub-group 1, 2, 6, 7 or 8 metal, lead, tin or rhenium (metal M); and (II) pre-roughening the electrode acting as anode I by operating it as cathode (cathode II), at which hydrogen is generated with a charge of 0.01-100 F, then reversing the polarity of cathode II to anode I. The compositions of the electrolytes used are selected so that a mixture of all mixing components of electrolytes I and II, up to any conductive salt present, has a dielectric constant less than 20.
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公开(公告)号:NO20032335L
公开(公告)日:2003-07-14
申请号:NO20032335
申请日:2003-05-23
Applicant: BASF AG
Inventor: PUETTER HERMANN , FISCHER ANDREAS
IPC: C25B3/23 , C25B3/00 , C07C43/305 , C07C43/32
Abstract: A method for producing alcoxylated carbonyl compounds of general formula (I) (compounds I): R aR C(OR )b wherein R , R represent hydrogen or C1-C6-alkyl, R independently means C1-C6-alkyl, a is 0 or 1, b 2 or 3 with the proviso that the sum of a and b is 3, by means of anodic oxidation of germinal dialcoxy compounds of general formula (II) (compounds II) wherein R , R , R , R represent hydrogen or C1-C6-alkyl, R , R represent C1-C6-alkyl or C1-C6-alcoxy, in the presence of a C1-C6-alkyl alcohol (compounds III). A usual compound (compound IV) is used as a cathodic depolarizer suitable for electrochemical oxidation. The anodic oxidation and cathodic reduction is carried out in an undivided electrolyte cell in the presence of C1-C6-alkyl alcohols.
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