公开(公告)号：DE3205946A1

公开(公告)日：1983-09-01

申请号：DE3205946

申请日：1982-02-19

Applicant: BASF AG

Inventor： PLATZ ROLF DIPL CHEM DR ,  GATH RUDOLPH HANS DIPL CHEM DR ,  PETERSEN HARRO DIPL CHEM DR

IPC: B01J23/86 ,  C07C233/00 ,  C07C103/133 ,  C07C102/10

公开(公告)号：DE3305101A1

公开(公告)日：1983-08-18

申请号：DE3305101

申请日：1983-02-15

Applicant: BASF AG

Inventor： GATH RUDOLPH HANS DIPL CHEM DR ,  STREIT WERNER DIPL CHEM DR ,  PETERSEN HARRO DIPL CHEM DR

IPC: C07D213/16 ,  C07C102/10 ,  C07D211/40

Abstract: Process for the preparation of carboxamides by reacting oximenes in the presence of pyridine/SO3 complexes. The end substances which can be prepared by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents and pharmaceuticals.

公开(公告)号：DE3305100A1

公开(公告)日：1983-08-18

申请号：DE3305100

申请日：1983-02-15

Applicant: BASF AG

Inventor： GATH RUDOLPH HANS DIPL CHEM DR ,  STREIT WERNER DIPL CHEM DR ,  PETERSEN HARRO DIPL CHEM DR

IPC: C07D233/54 ,  C07D233/60 ,  C07D233/84 ,  C07D521/00 ,  C25D3/14

Abstract: New imidazole/SO3 complexes, method for their production by reaction of imidazoles with SO3 in an inert solvent and use as brighteners for electroplating baths. The final substances in accordance with the invention can thus be used as additives expediently for the protection of steel, brass, zinc, aluminium alloys and magnesium alloys against corrosion and in order to obtain bright, hard, very ductile levelling nickel coatings for, for instance, printing plates, cutting and embossing tools, nickel foils, nickel strips, nickel tubes, screen plates, automobile bumpers, clock dials, and optical articles.

公开(公告)号：DE2443341A1

公开(公告)日：1976-03-25

申请号：DE2443341

申请日：1974-09-11

Applicant: BASF AG

Inventor： GATH RUDOLPH HANS DIPL CHEM DR ,  FUCHS HUGO DIPL CHEM DR

IPC: C07D201/16 ,  C07D223/10

Abstract: A method of simultaneously purifying crude caprolactams obtained from the Beckmann rearrangement of cyclohexanone oxime in oleum and the gas-phase rearrangement of cyclohexanone oxime in the presence of catalysts. The improvement consists in that the crude caprolactam obtained from the catalytic gas-phase rearrangement is added to the acid rearrangement mixture derived from the Beckmann rearrangement in oleum and the mixture is maintained at temperatures of from 100 DEG to 200 DEG C with thorough mixing, whereupon it is neutralized and worked up. Advantageously, the content of lactam in the catalytic gas-phase rearrangement is from 5 to 30% of the content of lactam in the acid rearrangement mixture obtained from the Beckmann rearrangement.