公开(公告)号：CA2429542A1

公开(公告)日：2002-05-30

申请号：CA2429542

申请日：2001-11-16

Applicant: BASF AG

Inventor： PUTTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C51/353 ,  C07D307/32 ,  C25B3/23 ,  C25B3/25 ,  C25B3/29 ,  C25B3/00 ,  C07C67/00 ,  C25B3/10 ,  C07C231/12 ,  C07C233/18 ,  C07C55/24

Abstract: The invention relates to a method for producing butane tetracarboxylic acid derivatives as a product of value I by coupled electrosynthesis. A compound from the group comprising the maleic acid esters, maleic acid ester derivatives, fumaric acid esters or fumaric acid ester derivatives is selected. At least one hydrogen atom in positions 2 and 3 is substituted by inert groups, is cathodically reduced and a product of value II is obtained on the anode.

公开(公告)号：DE19949672A1

公开(公告)日：2001-04-19

申请号：DE19949672

申请日：1999-10-14

Applicant: BASF AG

Inventor： THERRE JOERG ,  KRAMER ANDREAS ,  WEIPER-IDELMANN ANDREAS ,  SCHULIK MICHAEL ,  BENFER REGINA ,  SCHOSSIG JUERGEN

IPC: C07B61/00 ,  C07C45/62 ,  C07C45/73 ,  C07C45/74 ,  C07C47/228 ,  C07C47/232

Abstract: The invention relates to a continuous method for production of cinnamaldehyde or cinnamaldehyde derivatives comprising continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and, optionally, as the final step, continuous hydrogenation in a recirculating reactor in the presence of a suspended catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.

公开(公告)号：IN183980B

公开(公告)日：2000-05-27

申请号：IN160MA1994

申请日：1994-03-07

Applicant: BASF AG

Inventor： SCHNITZER GEORG ,  SUETSCH FRANZ ,  SCHMITT MICHAEL ,  KROMM ERICH ,  SCHLUETER HARALD ,  KRUEGER RUDOLF ,  WEIPER-IDELMANN ANDREAS

IPC: D06P1/32

公开(公告)号：DE19808296A1

公开(公告)日：1999-09-02

申请号：DE19808296

申请日：1998-02-27

Applicant: BASF AG

Inventor： WEIPER-IDELMANN ANDREAS ,  HANNEBAUM HEINZ ,  PUETTER HERMANN

IPC: C07C45/42 ,  C07C45/51 ,  C07C45/59 ,  C07C47/542 ,  C07D307/88 ,  C25B3/25 ,  C07C49/00 ,  C25B3/00 ,  C07B41/06

Abstract: The invention relates to a method for the selective hydrolysis of acetals in the presence of phthalides. According to said method a mixture (M) containing a) a phthalide of the formula (I) and b) an acetal or ketal of the formula (II) is reacted in the presence of between 1 and 10 mol water relative to the quantity of acetals or ketals of formula (II) at temperatures of between 10 and 200 DEG C, whereby the acetal or ketal of formula (II) is hydrolysed to the corresponding aldehyde or ketone. The substituents R -R have the meanings given in the description.

公开(公告)号：CA2321847A1

公开(公告)日：1999-09-02

申请号：CA2321847

申请日：1999-02-13

Applicant: BASF AG

Inventor： HANNEBAUM HEINZ ,  PUTTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C45/42 ,  C07C45/51 ,  C07C45/59 ,  C07C47/542 ,  C07D307/88 ,  C25B3/25 ,  C25B3/04

Abstract: The invention relates to a method for the selective hydrolysis of acetals in the presence of phthalides. According to said method a mixture (M) containing a) a phthalide of the formula (I) and b) an acetal or ketal of the formula (II) is reacted in the presence of between 1 and 10 mol water relative to the quantity of acetals or ketals of formula (II) at temperatures of between 10 and 200 ~C, whereby the acetal or ketal of formula (II) is hydrolysed to the corresponding aldehyde or ketone. The substituents R1-R8 have the meanings given in the description.

公开(公告)号：DE50113095D1

公开(公告)日：2007-11-15

申请号：DE50113095

申请日：2001-11-16

Applicant: BASF AG

Inventor： PUETTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C51/353 ,  C07C55/24 ,  C07C67/00 ,  C07C231/12 ,  C07C233/18 ,  C07D307/32 ,  C25B3/23 ,  C25B3/25 ,  C25B3/29

Abstract: A process for preparing butanetetracarboxylic acid derivatives as product of value I by coupled electrosynthesis which comprises cathodically reducing a compound selected from the group consisting of maleic esters, maleic ester derivatives, fumaric esters and fumaric ester derivatives where at least one hydrogen atom in positions 2 and 3 may be replaced by inert groups and obtaining a product of value II at the node.

公开(公告)号：AT374741T

公开(公告)日：2007-10-15

申请号：AT01990417

申请日：2001-11-16

Applicant: BASF AG

Inventor： PUETTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C51/353 ,  C07C55/24 ,  C07C67/00 ,  C07C231/12 ,  C07C233/18 ,  C07D307/32 ,  C25B3/23 ,  C25B3/25 ,  C25B3/29

Abstract: A process for preparing butanetetracarboxylic acid derivatives as product of value I by coupled electrosynthesis which comprises cathodically reducing a compound selected from the group consisting of maleic esters, maleic ester derivatives, fumaric esters and fumaric ester derivatives where at least one hydrogen atom in positions 2 and 3 may be replaced by inert groups and obtaining a product of value II at the node.

公开(公告)号：DE50005271D1

公开(公告)日：2004-03-18

申请号：DE50005271

申请日：2000-10-10

Applicant: BASF AG

Inventor： THERRE JOERG ,  KRAMER ANDREAS ,  WEIPER-IDELMANN ANDREAS ,  SCHULIK MICHAEL ,  BENFER REGINA ,  SCHOSSIG JUERGEN ,  HAAKE MATHIAS ,  GOEBBEL HANS-GEORG

IPC: C07B61/00 ,  C07C45/62 ,  C07C45/73 ,  C07C45/74 ,  C07C47/228 ,  C07C47/232

Abstract: The present invention relates to a continuous process for the preparation of cinnamaldehyde or cinnamaldehyde derivatives by continuous reaction of benzaldehyde derivatives with alkanals in the presence of bases and optionally subsequent continuous hydrogenation in a circulation reactor in the presence of a suspension catalyst and hydrogen to give dihydrocinnamaldehyde derivatives.

公开(公告)号：DE10057888A1

公开(公告)日：2002-05-23

申请号：DE10057888

申请日：2000-11-22

Applicant: BASF AG

Inventor： PUETTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C51/353 ,  C07D307/32 ,  C25B3/23 ,  C25B3/25 ,  C25B3/29 ,  C25B3/10 ,  C07C27/00 ,  C07C67/333 ,  C07C69/34 ,  C07B61/00 ,  C07D521/00 ,  C07C47/575 ,  C07C15/00 ,  C07C11/00 ,  C07C251/00 ,  C07C53/00 ,  C07C59/00

Abstract: Production of butanetetracarboxylic acid derivatives (I) by cathodic reduction of maleate or fumarate esters, optionally with inert substituents at the 2 and 3 positions, and producing a coproduct at the anode.

公开(公告)号：AU6428394A

公开(公告)日：1994-10-24

申请号：AU6428394

申请日：1994-03-21

Applicant: BASF AG

Inventor： SCHNITZER GEORG ,  SUETSCH FRANZ ,  SCHMITT MICHAEL ,  KROMM ERICH ,  SCHLUETER HARALD ,  KRUEGER RUDOLF ,  WEIPER-IDELMANN ANDREAS

IPC: C09B7/02 ,  D06P1/22 ,  D06P3/60 ,  D06P5/20

Abstract: PCT No. PCT/EP94/00873 Sec. 371 Date Sep. 29, 1995 Sec. 102(e) Date Sep. 29, 1995 PCT Filed Mar. 21, 1994 PCT Pub. No. WO94/23114 PCT Pub. Date Oct. 13, 1994A process for dyeing celluose-containing textile material with indigo comprises using an aqueous solution of leuco indigo prepared by catalytic hydrogenation and, after the leuco indigo has gone onto the textile material, converting it back into the pigment form in a conventional manner by air oxidation.