公开(公告)号：CA2032360A1

公开(公告)日：1991-06-24

申请号：CA2032360

申请日：1990-12-14

Applicant: HOECHST AG

Inventor： WEBER JURGEN ,  LAPPE PETER ,  SPRINGER HELMUT

IPC: B01J23/755 ,  C07B61/00 ,  C07C45/49 ,  C07C45/74 ,  C07C51/16 ,  C07C51/235 ,  C07C51/285 ,  C07C51/29 ,  C07C57/58 ,  C07C51/145

Abstract: Hoechst Aktiengesellschaft, Frankfurt am Main 80 of the disclosure: The invention relates to a novel process for the preparation of 2-(4-chlorophenyl)-3-methylbutyric acid from 4chlorobenzaldehyde by the intermediate stages 3-(4-chlorophenyl)-2-methylpropenal, 3-(4-chlorophenyl)-2-methylpropanol,1-(4-chlorophenyl) 2-methylprop-1-ene and 2-(4-chlorophenyl)-2-methylbutyraldehyde.

公开(公告)号：ZA899253B

公开(公告)日：1990-09-26

申请号：ZA899253

申请日：1989-12-04

Applicant: HOECHST AG

Inventor： WEBER JUERGEN ,  JUERGEN WEBER ,  LAPPE PETER ,  PETER LAPPE ,  WIN WERNER DE ,  WERNER DE WIN

IPC: C01G3/00 ,  C22B3/00 ,  C22B3/30 ,  C22B15/00 ,  C01G ,  B01D

Abstract: Copper is separated from aqueous basic solutions by extraction with 3-hydroxy-2-alkylalkanaloxime or 2-hydroxymethyl-2-alkylalkanaloxime solution.

公开(公告)号：HUT52741A

公开(公告)日：1990-08-28

申请号：HU635189

申请日：1989-12-04

Applicant: HOECHST AG

Inventor： WEBER JUERGEN ,  LAPPE PETER ,  WIN WERNER

IPC: C01G3/00 ,  C22B3/00 ,  C22B3/30 ,  C22B15/00 ,  B01D11/00

Abstract: Copper is separated from aqueous basic solutions by extraction with 3-hydroxy-2-alkylalkanaloxime or 2-hydroxymethyl-2-alkylalkanaloxime solution.

公开(公告)号：BR9703095A

公开(公告)日：1998-09-08

申请号：BR9703095

申请日：1997-05-08

Applicant: HOECHST AG

Inventor： LAPPE PETER ,  BAHRMANN HELMUT ,  LUKAS RAINER ,  MUELLER THOMAS

IPC: B01J31/02 ,  B01J31/24 ,  B01J31/40 ,  B01J38/00 ,  C07B61/00 ,  C07C45/50 ,  C07C45/78 ,  C07C47/02 ,  C07C47/34 ,  C07F9/50 ,  C07C45/49

Abstract: Aldehydes are prepared by hydroformylation of olefinically unsaturated compounds with hydrogen and carbon monoxide in homogeneous phase in the presence of a catalyst system comprising rhodium complex compounds and aromatic phosphines in molar excess. The catalyst system is separated off from the reaction mixture by pressure filtration on a semipermeable membrane of an aromatic polyamide. The hydroformylation is carried out at pH 2.5-4.2 using a molar ratio of phosphine:rhodium of at least 60 and a rhodium concentration of at least 10 ppm weight. The aromatic phosphines are alkylammonium and/or arylammonium salts of sulphonated or carboxylated triarylphosphines of formula (I). In (I): X = sulphonate or carboxylate; a, b and c each = 0 or 1, at least one being 1; n = 1, 2 or 3; and R1 and R2 each = 8-13C alkyl, 6-10C aryl and/or 6-10C cycloalkyl, R1 can also be hydrogen, with R1 and R2 having a total of at least 30C.

公开(公告)号：AU692935B2

公开(公告)日：1998-06-18

申请号：AU3775395

申请日：1995-11-10

Applicant: HOECHST AG

Inventor： BAHRMANN HELMUT ,  LAPPE PETER ,  FELL BRENHARD ,  LECKEL DIETER ,  SCHOBBEN CHRISTIAN

IPC: B01J31/24 ,  C07B61/00 ,  C07C67/313 ,  C07C67/347 ,  C07C69/66 ,  C07C69/716 ,  C07F9/50 ,  C07C67/38 ,  C07C69/67

Abstract: A method for the prepn. of di- or polyformyl carboxylic acid esters - comprises the reaction of an ester of a polyunsatd. fatty acid and a low mol. wt. monoalcohol with carbon monoxide and hydrogen at 100 - 180 degrees C and 5 - 35 MPa, in the presence of an aq. soln. contg. rhodium phosphine complex catalysts and a solvent.

公开(公告)号：ZA9705540B

公开(公告)日：1997-12-24

申请号：ZA9705540

申请日：1997-06-23

Applicant: HOECHST AG

Inventor： BAHRMANN HELMUT ,  REGNAT DIETER ,  LAPPE PETER

IPC: B01J31/16 ,  B01J31/22 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02 ,  B01J ,  C07C

CPC classification number: B01J31/4046 ,  B01J31/2213 ,  B01J31/2295 ,  B01J2231/321 ,  B01J2531/0266 ,  B01J2531/822 ,  C07C45/50 ,  Y02P20/584 ,  C07C47/02

公开(公告)号：PL321896A1

公开(公告)日：1997-12-22

申请号：PL32189696

申请日：1996-02-14

Applicant: HOECHST AG

Inventor： ZGORZELSKI WOLFGANG ,  LAPPE PETER ,  SCHALAPSKI KURT ,  GICK WILHELM

IPC: C07C29/80 ,  C07C29/88 ,  C07C29/94 ,  C07C31/02

Abstract: PCT No. PCT/EP96/00633 Sec. 371 Date Aug. 22, 1997 Sec. 102(e) Date Aug. 22, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/26173 PCT Pub. Date Aug. 29, 1996The invention relates to a process for the purification of C3-C10-alcohols by distillation, by distilling the alcohols at 150 to 200 DEG C. in the presence of 10 to 1000 ppm of alkali metal hydroxide.

公开(公告)号：ZA973999B

公开(公告)日：1997-12-09

申请号：ZA973999

申请日：1997-05-08

Applicant: HOECHST AG

Inventor： BAHRMANN HELMUT ,  LAPPE PETER ,  MUELLER THOMAS

IPC: B01J31/02 ,  B01J31/24 ,  B01J31/40 ,  B01J38/00 ,  C07B61/00 ,  C07C45/49 ,  C07C45/50 ,  C07C45/78 ,  C07C47/02 ,  C07F9/50 ,  B01J ,  C07C ,  C07B

Abstract: In catalyst systems based on rhodium (Rh) complex compounds with diphosphine ligands, the ligands are organoammonium diphosphine-carboxylates, -sulphonates or -phosphonates of formula (I); in which R = a carboxylate (-COO ), sulphonate (-SO3 ), phosphonate (-PO3 ) or 2-aminoethane bisphosphonate Ä-NH-CH2-CH(PO3 )2Ü group; R = linear alkylene with 1-8C, 2-6 C alkylene containing oxygen, 3-10 C cycloalkylene or a group of formulae (II), (III), (IV) or (V); at least one of a, b, c, d, e, f, g, h, k, l = 1, otherwise 0; x = 0 or 1; R , R = 4-26 C alkyl, optionally substituted 6-10 C aryl or 6-10 C cycloalkyl or benzyl and R may also = hydrogen (H).

公开(公告)号：ZA973982B

公开(公告)日：1997-12-09

申请号：ZA973982

申请日：1997-05-08

Applicant: HOECHST AG

Inventor： BAHRMANN HELMUT ,  MUELLER THOMAS ,  LAPPE PETER

IPC: B01J31/02 ,  B01J31/24 ,  B01J31/40 ,  B01J38/00 ,  C07B61/00 ,  C07C45/49 ,  C07C45/50 ,  C07C45/78 ,  C07C47/02 ,  C07F9/50 ,  B01J ,  C07C ,  C07B

Abstract: In catalyst systems based on rhodium (Rh) complex compounds with diphosphine ligands, the ligands are organoammonium diphosphine-carboxylates, -sulphonates or -phosphonates of formula (I); in which R = a carboxylate (-COO ), sulphonate (-SO3 ), phosphonate (-PO3 ) or 2-aminoethane bisphosphonate Ä-NH-CH2-CH(PO3 )2Ü group; R = linear alkylene with 1-8C, 2-6 C alkylene containing oxygen, 3-10 C cycloalkylene or a group of formulae (II), (III), (IV) or (V); at least one of a, b, c, d, e, f, g, h, k, l = 1, otherwise 0; x = 0 or 1; R , R = 4-26 C alkyl, optionally substituted 6-10 C aryl or 6-10 C cycloalkyl or benzyl and R may also = hydrogen (H).

公开(公告)号：ZA9601408B

公开(公告)日：1997-11-24

申请号：ZA9601408

申请日：1996-02-22

Applicant: HOECHST AG

Inventor： SGORZELSKI WOLFGANG ,  LAPPE PETER ,  SCHALAPSKI KURT ,  GICK WILHELM

IPC: C07C29/80 ,  C07C29/94 ,  C07C31/02 ,  C07C

CPC classification number: C07C29/80 ,  C07C31/12 ,  C07C31/125