公开(公告)号：MX2007015209A

公开(公告)日：2008-02-22

申请号：MX2007015209

申请日：2006-06-14

Applicant: BASF AG

Inventor： SCHROF WOLFGANG ,  SCHOLTISSEK MARTIN ,  DIETSCHE FRANK ,  MISSKE ANDREA ,  VOLKEL LUDWIG ,  BITTNER CHRISTIAN ,  MUNSTER INGO ,  SCHEIN KARIN ,  KOCHNER ARNO ,  HANSGEORG ERNST ,  BECK KARL

IPC: C07D217/10

Abstract: Esta invencion se refiere a un proceso para generar compuestos, que son utiles como potenciadores de blanqueado, como tambien a los compuestos, que pueden obtenerse usando dicho proceso, y a su uso.

公开(公告)号：ES2290452T3

公开(公告)日：2008-02-16

申请号：ES03720564

申请日：2003-05-12

Applicant: BASF AG

Inventor： HEIDENFELDER THOMAS ,  BECK KARL

IPC: C07C227/38 ,  C07B61/00 ,  C07C227/42 ,  C07C227/00 ,  C07C227/18 ,  C07C227/40 ,  C07C229/52

Abstract: Procedimiento para la obtención del éster de n-hexilo del ácido 2-(4-N, N-dietilamino-2-hidroxibenzoil)benzoico de la fórmula Ia mediante I reacción del 3-N, N-dietilaminofenol de la fórmula IIa con el anhídrido del ácido ftálico de la fórmula III para dar el ácido 2-(4-N, N-dietil-amino-2-hidroxibenzoil)benzoico de la fórmula IVa y II a continuación, esterificación del ácido 2-(4-N, N-dietilamino-2-hidroxibenzoil)benzoico de la fórmula IVa, formado en la etapa I, con n-hexanol en presencia de un catalizador ácido para dar el éster de n-hexilo del ácido 2-(4-N, N-dietilamino-2-hidroxibenzoil)benzoico de la fórmula Ia, caracterizado porque el éster formado de la fórmula Ia se cristaliza y los cristales se purifican en otra etapa del procedimiento III mediante tratamiento con un adsorbente y mediante destilación, empleándose carbón activo o gel de sílice como adsorbente.

公开(公告)号：NO20076262A

公开(公告)日：2008-01-15

申请号：NO20076262

申请日：2007-12-05

Applicant: BASF AG

Inventor： SCHOLTISSEK MARTIN ,  MUENSTER INGO ,  VOLKEL LUDWIG ,  BITTNER CHRISTIAN ,  DIETSCHE FRANK ,  SCHROF WOLFGANG ,  SCHEIN KARIN ,  KOCHNER ARNO ,  ERNST HANSGEORG ,  BECK KARL ,  MISSKE ANDREA

IPC: C07D217/00

CPC classification number: C07D217/12

公开(公告)号：AT373634T

公开(公告)日：2007-10-15

申请号：AT03720564

申请日：2003-05-12

Applicant: BASF AG

Inventor： HEIDENFELDER THOMAS ,  BECK KARL

IPC: C07C227/38 ,  C07C227/42 ,  C07B61/00 ,  C07C227/00 ,  C07C227/18 ,  C07C227/40 ,  C07C229/52

Abstract: Production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters comprises reaction of a 3-N,N-dialkylaminophenol with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid, esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst. A process for the production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters (I) of formula (1) comprises: (a) reaction of a 3-N,N-dialkylaminophenol of formula (2) with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid of formula (3) followed by; (b) esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst to form the ester (I) of formula (1) whereby the product ester is purified in a step; (c) by treatment with an adsorbent and/or by distillation. R1, R2 = 1-6C alkyl or 3-10C cycloalkyl; R3 = 1-12C alkyl or 3-10C cycloalkyl.

公开(公告)号：DE10221805A1

公开(公告)日：2003-11-27

申请号：DE10221805

申请日：2002-05-15

Applicant: BASF AG

Inventor： HEIDENFELDER THOMAS ,  BECK KARL

IPC: C07C227/42 ,  C07B61/00 ,  C07C227/00 ,  C07C227/18 ,  C07C227/38 ,  C07C227/40 ,  C07C229/52 ,  C07C221/00 ,  C07C225/22

Abstract: Production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters comprises reaction of a 3-N,N-dialkylaminophenol with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid, esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst. A process for the production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters (I) of formula (1) comprises: (a) reaction of a 3-N,N-dialkylaminophenol of formula (2) with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid of formula (3) followed by; (b) esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst to form the ester (I) of formula (1) whereby the product ester is purified in a step; (c) by treatment with an adsorbent and/or by distillation. R1, R2 = 1-6C alkyl or 3-10C cycloalkyl; R3 = 1-12C alkyl or 3-10C cycloalkyl.

公开(公告)号：CA2465811A1

公开(公告)日：2003-05-22

申请号：CA2465811

申请日：2002-11-12

Applicant: BASF AG

Inventor： BECK KARL ,  FREUND TORSTEN ,  GERBER BERND

IPC: C07C209/84 ,  C07C209/86 ,  C07C211/03 ,  C07C211/08 ,  C07C209/82

Abstract: The invention relates to a method for isolating amines from aqueous solution s by means of continuous distillation of aqueous solutions of the amines according to a dual-pressure method for the rectification of aqueous solutio ns of amines forming an azeotrope with water, the composition of said azeotrope being pressure-dependent. The distillation is carried out in two columns und er different pressures. According to the inventive method, a) the pressure in t he second column is set at least 0.5 bar higher than the pressure in the first column, b) the aqueous amine solution is supplied to the first column in a side stream, and water and parts which boil at a higher temperature than the amines or are non-volatile are exfiltrated out of the bottom of the column, c) a mixture of amine and water is removed at the head of the first column and is guided into the second column in a side stream, d) an azeotrope of water and amine is removed at the head of the second column and is redirected into the first column, and e) the purified amines are extracted at the bottom of the second column.

公开(公告)号：NZ309758A

公开(公告)日：1999-04-29

申请号：NZ30975896

申请日：1996-05-24

Applicant: BASF AG

Inventor： HOLDERBAUM MARTIN ,  BECK KARL ,  AUMUELLER ALEXANDER ,  WITZEL TOM ,  VOIT GUIDO

IPC: C07C253/30 ,  C07C255/41

Abstract: PCT No. PCT/EP96/02238 Sec. 371 Date Dec. 1, 1997 Sec. 102(e) Date Dec. 1, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/38409 PCT Pub. Date Dec. 5, 1996A process for preparing 2-cyano-3,3-diarylacrylic esters of the general formula I where R1 and R2 are hydrogen, C1-C12-alkyl groups, C-C12-alkoxy groups or di(C1-C4-alkyl)amino groups and R3 is a C4-C18-alkyl group which can be interrupted by ether-functional oxygen atoms, by reacting a benzophenone imine of the general formula II with a cyanoacetic ester of the general formula III wherein the reaction is carried out at from 20 to 60 DEG C. and, during this, the liberated ammonia is continuously removed from the reaction mixture with the aid of a stream of gas or by reducing the pressure to from 900 to 100 mbar.

公开(公告)号：BG102059A

公开(公告)日：1998-09-30

申请号：BG10205997

申请日：1997-11-20

Applicant: BASF AG

Inventor： HOLDERBAUM MARTIN ,  BECK KARL ,  AUMUELLER ALEXANDER ,  WITZEL TOM ,  VOIT GUIDO

IPC: C07C253/30 ,  C07C255/41

Abstract: The esters of 2-cyano-3,3-diarylacrylic acid have the formulawhere R1 & R2 mean hydrogen, C1-C12 alkyl group, C1-C12alkoxygroup or di-(C1-C4-alkyl) aminogroup, and R3 means C4-C18alkyl group which can be discontinued by oxygen atoms in etherfunction. By the method, benzophenonimyn with formulareacts with ester of the cyanoacetic acid with formulaat temperature from 20 to 60°C and continuous elimination of theammonia separated during the reaction by means of a gas flow or byreducing the pressure ot 900-100 mbar.4 claims

公开(公告)号：NO975499L

公开(公告)日：1997-11-28

申请号：NO975499

申请日：1997-11-28

Applicant: BASF AG

Inventor： HOLDERBAUM MARTIN ,  BECK KARL ,  AUMUELLER ALEXANDER ,  WITZEL TOM ,  VOIT GUIDO

IPC: C07C253/30 ,  C07C255/41

Abstract: PCT No. PCT/EP96/02238 Sec. 371 Date Dec. 1, 1997 Sec. 102(e) Date Dec. 1, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/38409 PCT Pub. Date Dec. 5, 1996A process for preparing 2-cyano-3,3-diarylacrylic esters of the general formula I where R1 and R2 are hydrogen, C1-C12-alkyl groups, C-C12-alkoxy groups or di(C1-C4-alkyl)amino groups and R3 is a C4-C18-alkyl group which can be interrupted by ether-functional oxygen atoms, by reacting a benzophenone imine of the general formula II with a cyanoacetic ester of the general formula III wherein the reaction is carried out at from 20 to 60 DEG C. and, during this, the liberated ammonia is continuously removed from the reaction mixture with the aid of a stream of gas or by reducing the pressure to from 900 to 100 mbar.