公开(公告)号：DE3049543A1

公开(公告)日：1982-07-29

申请号：DE3049543

申请日：1980-12-31

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  AQUILA WERNER DIPL CHEM DR ,  HOFFMANN WOLFGANG DIPL ING DR ,  BRENNER KARL ,  HALBRITTER KLAUS DIPL CHEM DR

IPC: C07C47/21 ,  B01J23/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/38 ,  C07C45/81 ,  C07C67/00 ,  C07C45/32 ,  C07C45/78

Abstract: A process for the continuous preparation of 3-alkyl-buten-1-als by oxidative dehydrogenation of 3-alkyl-buten-1-ols at from 320 DEG to 650 DEG C. with oxygen over a catalyst containing copper and/or silver, wherein, within one second after contact with the catalyst, the vaporous reaction mixture, which is at from 320 DEG to 650 DEG C., is brought into contact with a liquid comprising water and/or the condensed reaction mixture at from -20 DEG to 50 DEG C., and the 3-alkyl-buten-1-als are separated off from the resulting condensate.

公开(公告)号：DE2922599A1

公开(公告)日：1980-12-04

申请号：DE2922599

申请日：1979-06-02

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  HOFFMANN WOLFGANG DIPL ING DR

IPC: C07C47/127 ,  B01J8/02 ,  B01J8/04 ,  B01J23/00 ,  B01J23/50 ,  C07B61/00 ,  C07C45/00 ,  C07C45/38 ,  C07C45/78 ,  C07C45/81 ,  C07C67/00 ,  C07C47/12 ,  C07C45/29

Abstract: Glyoxal is prepared by oxidizing glycol in the presence of a silver catalyst, with subsequent or partial condensation of glycol, glyoxal, glycol aldehyde, formaldehyde and/or water by treatment with water or aqueous glyoxal solution in fine dispersion, under specific conditions with regard to the temperature and dispersion of the treatment liquid. The glyoxal which can be prepared by the process of the invention is a wrinkle-resist agent, an assistant for increasing the tear strength and elasticity of fiber materials, a tanning agent, a photographic hardener and a valuable starting material for the production of synthetic resins, textile assistants, paper assistants and plastics.

公开(公告)号：DE3130800A1

公开(公告)日：1983-02-24

申请号：DE3130800

申请日：1981-08-04

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  HALBRITTER KLAUS DIPL CHEM DR ,  ENGELBACH HEINZ DIPL CHEM DR

IPC: C07C47/127 ,  B01J23/00 ,  B01J23/50 ,  B01J23/72 ,  B01J23/89 ,  B01J27/16 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C29/38 ,  C07C45/00 ,  C07C45/38 ,  C07C67/00

公开(公告)号：DE2910131A1

公开(公告)日：1980-09-25

申请号：DE2910131

申请日：1979-03-15

Applicant: BASF AG

Inventor： ROSS KARL-HEINZ DIPL CHEM DR ,  DUDECK CHRISTIAN DIPL CHEM DR ,  HIMMELE WALTER DIPL CHEM DR ,  LEBKUECHER ROLF DIPL CHEM DR ,  SAUER WOLFGANG DIPL CHEM DR

IPC: C07D303/14 ,  C07D307/20 ,  C07D307/32 ,  C07D307/60 ,  A61K7/46 ,  A23L2/26 ,  A23L1/235

Abstract: A process for the preparation of the sought-after scent 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one, and novel intermediates for the preparation of this compound. 2,5-Dimethyl-4-hydroxy-2,3-dihydrofuran-3-one is prepared by first epoxidizing hex-3-ene-2,5-diol in the liquid phase with hydrogen peroxide to give the novel compound 3,4-epoxy-hexane-2,5-diol, which at 40 DEG -280 DEG C. is converted, by means of a catalytic amount of an acid, to the novel compound 2,5-dimethyl-3,4-dihydroxy-tetrahydro-furan. The latter is dehydrogenated by means of oxygen over a silver catalyst or copper catalyst to give the nove compound 2,5-dimethyl-4-hydroxy-tetrahydrofuran-3-one, which is oxidized by means of bismuth oxide, in concentrated acetic acid solution, to give the desired compound 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one.

公开(公告)号：DE2831595A1

公开(公告)日：1980-01-31

申请号：DE2831595

申请日：1978-07-19

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  DUDECK CHRISTIAN DIPL CHEM DR ,  LEHMANN GUNTER ING GRAD ,  MEISSNER BERND DIPL CHEM DR ,  PETRI NORBERT DIPL CHEM DR ,  ROSS KARL-HEINZ DIPL CHEM DR ,  HALBRITTER KLAUS DIPL CHEM DR ,  FLIEGE WERNER DIPL CHEM DR

IPC: C07C69/66 ,  B01J23/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/29 ,  C07C45/37 ,  C07C45/38 ,  C07C45/39 ,  C07C45/67 ,  C07C47/21 ,  C07C47/225 ,  C07C47/45 ,  C07C49/203 ,  C07C49/403 ,  C07C67/00 ,  C07C69/67 ,  C07D307/20 ,  C07D307/32 ,  C07D325/00 ,  C07C47/20 ,  C07C45/16 ,  C07C49/20 ,  C07C49/30 ,  C07C49/61

公开(公告)号：DE2831229A1

公开(公告)日：1980-01-31

申请号：DE2831229

申请日：1978-07-15

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  ROSS KARL-HEINZ DIPL CHEM DR ,  DUDECK CHRISTIAN DIPL CHEM DR ,  LEHMANN GUNTER ING GRAD ,  PETRI NORBERT DIPL CHEM DR ,  DIEM HANS DIPL CHEM DR ,  MEISSNER BERND DIPL CHEM DR ,  FLIEGE WERNER DIPL CHEM DR

IPC: C07C47/02 ,  B01J23/00 ,  B01J23/50 ,  B01J23/72 ,  C07B61/00 ,  C07C45/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/12 ,  C07C47/20 ,  C07C49/04 ,  C07C49/12 ,  C07C49/20 ,  C07C67/00 ,  C07C45/16

Abstract: Diketones are prepared by oxidizing glycols in the presence of a silver catalyst and/or copper catalyst of a specific particle size, under specific temperature conditions and with a specific composition of the catalyst. The end products are starting materials for the preparation of dyes, drugs, plastics, scents, wrinkle-resist finishes and assistants for increasing the tear strength and resilience of fibrous materials, hardeners for use in the photographic industry, textile assistants for preventing shrinkage after washing, and paper assistants.

公开(公告)号：DE2817496A1

公开(公告)日：1979-10-31

申请号：DE2817496

申请日：1978-04-21

Applicant: BASF AG

Inventor： SAUER WOLFGANG DIPL CHEM DR ,  FLIEGE WERNER DIPL CHEM DR ,  DUDECK CHRISTIAN DIPL CHEM DR ,  PETRI NORBERT DIPL CHEM DR

IPC: B01J23/00 ,  B01J35/00 ,  C07C45/00 ,  C07C45/29 ,  C07C45/38 ,  C07C47/20 ,  C07C47/228 ,  C07C47/52 ,  C07C47/54 ,  C07C67/00 ,  C07C213/00 ,  C07C223/00 ,  C07C47/48 ,  C07C95/08 ,  C07C45/16

Abstract: Aromatic and araliphatic aldehydes are prepared by oxidizing corresponding alcohols with oxygen in the presence of a silver catalyst of a defined particle size, and under defined temperature conditions. The products are starting materials for the preparation of dyes, pesticides, plastics and scents.