公开(公告)号：DE3045081A1

公开(公告)日：1982-07-01

申请号：DE3045081

申请日：1980-11-29

Applicant: BASF AG

Inventor： HARTMANN HORST ,  HOCHSTEIN WALDHELM DIPL CHEM D ,  KAIBEL GERD DIPL ING ,  MUELLER FRANZ-JOSEF DIPL CHEM

IPC: C07C27/00 ,  C07C27/30 ,  C07C51/46 ,  C07C51/573 ,  C07C53/08 ,  C07C53/12 ,  C07C67/00 ,  C07C67/54 ,  C07C69/14 ,  C07C69/15 ,  C07C69/16 ,  C07C27/22

公开(公告)号：DE50112613D1

公开(公告)日：2007-07-26

申请号：DE50112613

申请日：2001-02-23

Applicant: BASF AG

Inventor： BURST WOLFRAM ,  HARTMANN HORST ,  KAIBEL GERD DR ,  HARMS GUIDO DR

IPC: B01D3/14

公开(公告)号：DE50003261D1

公开(公告)日：2003-09-18

申请号：DE50003261

申请日：2000-02-28

Applicant: BASF AG

Inventor： HEIMANN FRANK ,  PESCHEL WERNER ,  BARTENBACH BERND ,  HARTMANN HORST ,  KEIL MICHAEL ,  WAHL JOSEF

IPC: B01D3/14 ,  B01D3/20 ,  C07C239/20

Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.

公开(公告)号：PT994112E

公开(公告)日：2002-12-31

申请号：PT99117240

申请日：1999-09-02

Applicant: BASF AG

Inventor： HARTMANN HORST ,  NORBERT GOTZ DR ,  KONIG HARTMANN ,  MAYWALD VOLKER ,  REISSENWEBER GERNOT

IPC: C07D307/33 ,  C07D407/04

Abstract: Separation of impurities from 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone (I) obtained by acetylation of 3-(2'-hydroxyethyl)-dihydro-2(3H)-furanone comprises first separating high boiling impurities and subjecting the recovered distillation head product to a further step in which light and medium boiling components are taken off at the head and recovering pure (I) as the sump product.

公开(公告)号：AT221060T

公开(公告)日：2002-08-15

申请号：AT99117240

申请日：1999-09-02

Applicant: BASF AG

Inventor： MAYWALD VOLKER DR ,  HARTMANN HORST ,  GOETZ NORBERT DR ,  REISSENWEBER GERNOT DR ,  KOENIG HARTMANN DR

IPC: C07D307/33 ,  C07D407/04

Abstract: Separation of impurities from 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone (I) obtained by acetylation of 3-(2'-hydroxyethyl)-dihydro-2(3H)-furanone comprises first separating high boiling impurities and subjecting the recovered distillation head product to a further step in which light and medium boiling components are taken off at the head and recovering pure (I) as the sump product.

公开(公告)号：HU0200621A2

公开(公告)日：2002-07-29

申请号：HU0200621

申请日：2000-02-28

Applicant: BASF AG

Inventor： BARTENBACH BERND ,  HARTMANN HORST ,  DR HEIMANN FRANK ,  DR KEIL MICHAEL ,  PESCHEL WERNER ,  WAHL JOSEF

IPC: B01D3/14 ,  B01D3/20 ,  C07C239/20

Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.

公开(公告)号：HU0100289A2

公开(公告)日：2001-05-28

申请号：HU0100289

申请日：1998-12-02

Applicant: BASF AG

Inventor： BORCHERS DIRK DR ,  GOETZ NORBERT DR ,  HARTMANN HORST ,  KUEKENHOEHNER THOMAS DR ,  KOENIG HARTMANN DR ,  MAYWALD VOLKER DR ,  WAGNER RUPERT

IPC: C07D307/32 ,  C07D307/33 ,  C07D407/04

Abstract: A process for removing impurities from 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone (I), which comprises initially preparing the 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone containing the undesirable impurities in a manner known per se by acetylating 3-(2'-hydroxylethyl)-dihydro-2(3H)-furanone, subsequently treating it with strong mineral acids and finally removing the decomposition products of the undesirable impurities from I.

公开(公告)号：AU3160900A

公开(公告)日：2000-10-04

申请号：AU3160900

申请日：2000-02-28

Applicant: BASF AG

Inventor： HEIMANN FRANK ,  PESCHEL WERNER ,  BARTENBACH BERND ,  HARTMANN HORST ,  KEIL MICHAEL ,  WAHL JOSEF

IPC: B01D3/14 ,  B01D3/20 ,  C07C239/20

Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.

公开(公告)号：DE19911234A1

公开(公告)日：2000-09-28

申请号：DE19911234

申请日：1999-03-15

Applicant: BASF AG

Inventor： HEIMANN FRANK ,  PESCHEL WERNER ,  BARTENBACH BERND ,  HARTMANN HORST ,  KEIL MICHAEL ,  WAHL JOSEF

IPC: B01D3/14 ,  B01D3/20 ,  C07C239/20

Abstract: The invention relates to a method for the continuous production of methoxyamine hydrochloride by dissociating acetone oxime dimethyl ether with hydrogen chloride and water. The inventive method is characterized by carrying out the dissociation step in a reactor column of less than 20 theoretical steps of separation and adjusting the overhead removal amount to at least 30 % of the quantity supplied.

公开(公告)号：GR3031778T3

公开(公告)日：2000-02-29

申请号：GR990402870

申请日：1999-11-08

Applicant: BASF AG

Inventor： RANG HARALD ,  GOETZ NORBERT ,  HARREUS ALBRECHT ,  BORCHERS DIRK ,  HARTMANN HORST ,  MAYWALD VOLKER ,  HEIMANN FRANK ,  BUSCHULTE THOMAS

IPC: B01J23/02 ,  B01J31/02 ,  C07B61/00 ,  C07C239/20 ,  C07C249/12 ,  C07C251/54 ,  C07C309/66

Abstract: PCT No. PCT/EP95/01581 Sec. 371 Date Nov. 4, 1996 Sec. 102(e) Date Nov. 4, 1996 PCT Filed Apr. 26, 1995 PCT Pub. No. WO95/30648 PCT Pub. Date Nov. 16, 1995Preparation of mixtures of O-phenoxyalkylhydroxylamines Ia and Ib (Ia): H2NOCH2CH(R1)OAr (Ib): H2NOCH(R1)CH2OAr and the corresponding salt mixtures by a) converting mixtures of isomers of O-(2-hydroxyethyl)oximes IIa and IIb (IIa): (III): into a mixture of sulfonates IVa and IVb (IVa): (IVb): b) reacting this mixture of IVa and IVb with a phenol HO-Ar (V) to give a mixture of O-phenoxyalkoximes VIa and VIb (VIa): (VIb): c) hydrolyzing this mixture in the presence of an acid and, if desired d) liberating the O-phenoxyalkylhydroxylamines Ia and Ib from the resulting salts using a mineral acid. Compounds Ia/Ib and VIa/VIb are important intermediates for crop protection agents.