公开(公告)号：DE19853089A1

公开(公告)日：2000-05-25

申请号：DE19853089

申请日：1998-11-18

Applicant: BASF AG

Inventor： BURKART KIRSTEN ,  GUTH JOSEF ,  LETZELTER THOMAS ,  SCHWEINZER JUERGEN ,  STERZEL HANS-JOSEF

IPC: C07C41/60 ,  C07C43/32

Abstract: Preparation of orthoesters by treatment of 1,1,1-trihaloalkanes with alkali-alcoholates in the presence of the corresponding alcohol where the alkali-alcoholate is added in the form of a mash in the alcohol.

公开(公告)号：HU228793B1

公开(公告)日：2013-05-28

申请号：HU0300766

申请日：2001-08-16

Applicant: BASF AG

Inventor： ISAK HEINZ ,  SENDHOFF NORBERT ,  SCHUETZ FRANZ ,  THERRE JOERG ,  DROEGEMUELLER MICHAEL ,  FRANKE DIRK ,  MUNZINGER MANFRED ,  WECK ALEXANDER ,  BURKART KIRSTEN

IPC: C07D285/34 ,  A01N25/12 ,  A01N43/88

Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.

公开(公告)号：AT384706T

公开(公告)日：2008-02-15

申请号：AT02016707

申请日：2002-07-26

Applicant: BASF AG

Inventor： RUST HARALD ,  BURKART KIRSTEN ,  FAUST TILLMANN ,  HENKELMANN JOCHEM ,  KINDLER ALOIS ,  KNOLL CHRISTIAN ,  MOHRY ANDRE

IPC: C07D263/42

Abstract: Continuous production of 5-alkoxy oxazoles (I) comprises heating an alkyl alpha -isocyanoalkanoate ester (II) at a temperature above 80 degrees C in the presence of an auxiliary agent and withdrawing the product from the reactor. Continuous production of 5-alkoxy oxazoles of formula (I) comprises heating an alkyl alpha -isocyanoalkanoate ester of formula (II) at a temperature above 80 degrees C in the presence of an auxiliary agent and withdrawing the product from the reactor. R1 = optionally substituted 1-6C alkyl; R2 = H or optionally substituted 1-6C alkyl. An Independent claim is also included for a process for producing pyridoxine derivatives of formula (IX), comprising: (1) converting an amino acid of formula (III) to an ester of formula (IV); (2) converting (IV) to a formamido ester of formula (IV); (3) converting (IV) to (II); (4) converting (II) to (I) as above; (5) reacting (I) with a protected diol of formula (VI) to form a Diels-Alder adduct of formula (VII); and (6) converting (VII) to (IX) by acid treatment and deprotection. R3, R4 = protecting groups or together form a protecting group.

公开(公告)号：AT299130T

公开(公告)日：2005-07-15

申请号：AT02027070

申请日：2002-12-03

Applicant: BASF AG

Inventor： FUNKE FRANK DR ,  GERLACH TILL DR ,  EBEL KLAUS DR ,  UNVERRICHT SIGNE DR ,  HAESE FRANK DR ,  BURKART KIRSTEN ,  GOEBBEL HANS-GEORG DR

IPC: C07B61/00 ,  C07C29/17 ,  C07C31/125

Abstract: Tetrahydrogeraniol is obtained by direct catalytic hydrogenation of the product mixture or distillation residue from the synthesis of linalool, citronellal, citronellol or geraniol/nerol.

公开(公告)号：DE50202096D1

公开(公告)日：2005-03-03

申请号：DE50202096

申请日：2002-07-25

Applicant: BASF AG

Inventor： RUST HARALD ,  BURKART KIRSTEN ,  FAUST DR ,  HENKELMANN DR ,  KINDLER DR ,  KNOLL DR ,  BECKER DR

IPC: C07D213/67 ,  C07D263/42

公开(公告)号：AT276222T

公开(公告)日：2004-10-15

申请号：AT00990689

申请日：2000-12-08

Applicant: BASF AG

Inventor： GUTH JOSEF ,  FRIEDRICH HOLGER ,  STERZEL HANS-JOSEF ,  KAIBEL GERD ,  BURKART KIRSTEN ,  HOFFMANN ELKE

IPC: B01D1/28 ,  C07C29/70 ,  C07C29/80 ,  C07C31/30

Abstract: Alkali metal methoxides are prepared from aqueous alkali metal hydroxide, which may have been admixed with methanol, and methanol in a reaction column having at least 5, preferably from 15 to 30, theoretical plates between the feed point for the aqueous alkali metal hydroxide and the feed point for the methanol. The gaseous methanol/water mixture formed in the reaction is fractionated in a rectification column. In one variant of the invention, the trays chosen for the reaction column configured as a bubble cap tray, valve tray or sieve tray column are trays in which not more than 5%, preferably

公开(公告)号：DE10209458A1

公开(公告)日：2003-09-18

申请号：DE10209458

申请日：2002-03-05

Applicant: BASF AG

Inventor： KINDLER ALOIS ,  HENKELMANN JOCHEM ,  BECKER MICHAEL ,  RUST HARALD ,  KNOLL CHRISTIAN ,  BURKART KIRSTEN

IPC: C07D263/42 ,  C07B37/12 ,  C07D213/67

公开(公告)号：DE10160142A1

公开(公告)日：2003-06-18

申请号：DE10160142

申请日：2001-12-07

Applicant: BASF AG

Inventor： FUNKE FRANK ,  GERLACH TILL ,  EBEL KLAUS ,  UNVERRICHT SIGNE ,  HAESE FRANK ,  BURKART KIRSTEN ,  GOEBBEL HANS-GEORG

IPC: C07B61/00 ,  C07C29/17 ,  C07C31/125

Abstract: Tetrahydrogeraniol is obtained by direct catalytic hydrogenation of the product mixture or distillation residue from the synthesis of linalool, citronellal, citronellol or geraniol/nerol.

公开(公告)号：DE10137627A1

公开(公告)日：2003-02-20

申请号：DE10137627

申请日：2001-08-03

Applicant: BASF AG

Inventor： RUST HARALD ,  BURKART KIRSTEN ,  FAUST TILLMANN ,  HENKELMANN JOCHEM ,  KINDLER ALOIS ,  KNOLL CHRISTIAN ,  MOHRY ANDRE

IPC: C07D213/67 ,  C07D263/42 ,  C07D213/66

Abstract: Continuous production of 5-alkoxy oxazoles (I) comprises heating an alkyl alpha -isocyanoalkanoate ester (II) at a temperature above 80 deg C in the presence of an auxiliary agent and withdrawing the product from the reactor. Continuous production of 5-alkoxy oxazoles of formula (I) comprises heating an alkyl alpha -isocyanoalkanoate ester of formula (II) at a temperature above 80 deg C in the presence of an auxiliary agent and withdrawing the product from the reactor. R1 = optionally substituted 1-6C alkyl; R2 = H or optionally substituted 1-6C alkyl. An Independent claim is also included for a process for producing pyridoxine derivatives of formula (IX), comprising: (1) converting an amino acid of formula (III) to an ester of formula (IV); (2) converting (IV) to a formamido ester of formula (IV); (3) converting (IV) to (II); (4) converting (II) to (I) as above; (5) reacting (I) with a protected diol of formula (VI) to form a Diels-Alder adduct of formula (VII); and (6) converting (VII) to (IX) by acid treatment and deprotection. R3, R4 = protecting groups or together form a protecting group.

公开(公告)号：AU3008501A

公开(公告)日：2001-06-18

申请号：AU3008501

申请日：2000-12-08

Applicant: BASF AG

Inventor： GUTH JOSEF ,  FRIEDRICH HOLGER ,  STERZEL HANS-JOSEF ,  KAIBEL GERD ,  BURKART KIRSTEN ,  HOFFMANN ELKE

IPC: B01D1/28 ,  C07C29/70 ,  C07C29/80 ,  C07C31/30

Abstract: Alkali metal methoxides are prepared from aqueous alkali metal hydroxide, which may have been admixed with methanol, and methanol in a reaction column having at least 5, preferably from 15 to 30, theoretical plates between the feed point for the aqueous alkali metal hydroxide and the feed point for the methanol. The gaseous methanol/water mixture formed in the reaction is fractionated in a rectification column. In one variant of the invention, the trays chosen for the reaction column configured as a bubble cap tray, valve tray or sieve tray column are trays in which not more than 5%, preferably