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公开(公告)号:AU7965301A
公开(公告)日:2001-12-24
申请号:AU7965301
申请日:2001-06-12
Applicant: BASF AG
Inventor: WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM , RATH HANS PETER
IPC: C08F4/06 , C08F4/14 , C08F6/02 , C08F10/10 , C08F110/10
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公开(公告)号:ZA9811148B
公开(公告)日:2000-06-07
申请号:ZA9811148
申请日:1998-12-07
Applicant: BASF AG
Inventor: MAYWALD VOLKER , GOETZ NORBERT , KUEKENHOEHNER THOMAS , BORCHERS DIRK , KOENIG HARTMANN , HARTMANN HORST , WAGNER RUPERT
IPC: C07D307/32 , C07D307/33 , C07D407/04 , C07D , C07B
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.
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公开(公告)号:AU1758299A
公开(公告)日:1999-06-28
申请号:AU1758299
申请日:1998-12-02
Applicant: BASF AG
Inventor: MAYWALD VOLKER , GOTZ NORBERT , KUKENHOHNER THOMAS , BORCHERS DIRK , KONIG HARTMANN , HARTMANN HORST , 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.
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公开(公告)号:MX9605361A
公开(公告)日:1997-12-31
申请号:MX9605361
申请日:1995-04-26
Applicant: BASF AG
Inventor: RANG HARALD , GOTZ 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: Preparacion de mezclas de isomeros de O-fenoxialquilhidroxilaminas Ia e Ib H2N o CH2 CH(R1) O Ar (Ia), H2N-O-CH(R1)-CH2-O-Ar (Ib), (R1 - alquilo; Ar = fenilo sustituido o no sustituido) y las mezclas de sales correspondientes mediante a) conversion de una mezcla de isomeros de O-(2-hidroxietil)oximas IIa e IIb. R3, R2 = N-O-CH2-CH(R1)-OH (IIa), R3, R2 = N O CH(R1) CH2 OH (IIb), (R2 = alquilo y R3 = alquilo, alcoxi, o R2 y R3 juntos con el átomo de carbono comun = anillo de 5 a 7 miembros) con un haluro de sulfonilo de la formula III. Hal-SO2-R4 (III), donde R4 es un radical orgánico, y Hal es halogeno, en presencia de una base en la mezcla correspondiente de sulfonatos IVa IVb, R3 y R2 = N-O-CH2-CH(R1)-O-SO2-R4 (IVa), R3 y R2 = N-O-CH(R1)-CH2-O-SO2-R4 (IVb) b) reaccion de esta mezcla de sulfonatos en presencia de una base con un fenol de la formula v. HO-Ar (V), para proporcionar un mezcla de O-fenoklalquiloximas de las formulas generales VIa e VIb; R3 y R2 = N-O-CH2-CH(R1)-O-Ar (VIa), R3 y R2 = N-O-CH(R1)-CH2-O-Ar (VIb) c) hidrolizacion de está mezcla en presencia de un ácido y, si se desea, d) liberacion de las O-fenilalquilbidroxilaminas Ia e Ib a partir de las sales resultantes usando una base mineral. Las O-fenoxialquilhidroxilaminas Ia/Ib y sus precursores VIa/VIb son compuestos intermedios importantes para agentes de proteccion de cosecha y fármacos.
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35.
公开(公告)号:ZA953583B
公开(公告)日:1996-11-04
申请号:ZA953583
申请日:1995-05-04
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 , C07C
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.
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36.
公开(公告)号:ZA9503583B
公开(公告)日:1996-11-04
申请号:ZA9503583
申请日:1995-05-04
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 , C07C
CPC classification number: C07C239/20 , C07C249/12 , C07C309/66
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37.
公开(公告)号:AU2408595A
公开(公告)日:1995-11-29
申请号:AU2408595
申请日:1995-04-26
Applicant: BASF AG
Inventor: RANG HARALD , GOTZ 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.
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公开(公告)号:DE50102486D1
公开(公告)日:2004-07-08
申请号:DE50102486
申请日:2001-08-11
Applicant: BASF AG
Inventor: WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM , RATH PETER
IPC: C08F4/14 , C08F6/02 , C08F6/08 , C08F10/10 , C08F110/10
Abstract: A process for the preparation of polyisobutylenes by cationic polymerization of isobutylene or isobutylene-containing hydrocarbon streams in the liquid phase in the presence of boron trifluoride acting as catalyst, the catalytic activity of boron trifluoride being partially or completely stopped by means of a solid deactivator following a given timelapse, which deactivator is an inorganic, anhydrous or hydrous oxygen compound of aluminum which is insoluble in the reaction mixture.
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公开(公告)号:HU0301859A2
公开(公告)日:2003-08-28
申请号:HU0301859
申请日:2001-11-16
Applicant: BASF AG
Inventor: BORCHERS DIRK , RATH HANS PETER , VERRELST WIM , WETTLING THOMAS
IPC: B01J27/12 , B01J27/32 , B01J38/00 , B01J38/52 , C08F4/14 , C08F6/00 , C08F6/02 , C08F6/08 , C08F10/00
Abstract: The invention relates to a method for deactivating and recovering boron trifluoride when producing polyisobutenes by means of cationic polymerization of isobutene or hydrocarbon streams containing isobutene in the liquid phase in the presence of boron trifluoride or in the form of a boron trifluoride catalyst complex. The catalyst complex is separated, essentially in the liquid phase, from the reactor discharge. The method comprises the following steps: a) removing from the polymerization reactor at -60 to 020 C., methanol, ethanol or a mixture of methanol and ethanol in such a quantity that an alcohol phase rich in boron trifluoride is formed; b) separating the alcohol phase according to (a) and, (c) optionally recycling the boron trifluoride of the alcohol phase obtained from (b) to the method in a suitable manner.
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公开(公告)号:AT214383T
公开(公告)日:2002-03-15
申请号:AT98962407
申请日:1998-12-02
Applicant: BASF AG
Inventor: MAYWALD VOLKER , GOETZ NORBERT , KUEKENHOEHNER THOMAS , BORCHERS DIRK , KOENIG HARTMANN , HARTMANN HORST , 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.
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