公开(公告)号：DE3028384A1

公开(公告)日：1982-02-25

申请号：DE3028384

申请日：1980-07-26

Applicant: BASF AG

Inventor： REBAFKA WALTER DIPL CHEM DR ,  SCHOSSIG JUERGEN DIPL CHEM DR ,  REISS WOLFGANG DIPL CHEM DR ,  VOGES DIETER DIPL CHEM DR

IPC: C07D263/44 ,  B01J23/00 ,  C07B61/00 ,  C07D207/06 ,  C07D207/08 ,  C07D211/02 ,  C07D211/14 ,  C07D211/20 ,  C07D295/02 ,  C07D295/023 ,  C07D207/04

Abstract: N-Alkylpiperidines or N-alkylpyrrolidines are obtained by hydrogenating a corresponding N-alkyldicarboxylic acid imide over a fixed catalyst by first working to only partial conversion, for example of about 50%, and distilling off the required product together with water from the partially converted mixture, where appropriate with recycling of the unconverted remainder.

公开(公告)号：DE3101197A1

公开(公告)日：1982-09-02

申请号：DE3101197

申请日：1981-01-16

Applicant: BASF AG

Inventor： BAER KARL DIPL CHEM DR ,  KOLBINGER HANS JOERGEN DIPL CH ,  REISS WOLFGANG DIPL CHEM DR ,  SCHEUERMANN HORST DIPL CHEM DR ,  SCHOSSIG JUERGEN DIPL CHEM DR

IPC: C07C309/46 ,  C07C143/58

Abstract: Dimethylaminobenzenesulphonates are prepared by reacting nitrobenzenesulphonates with formaldehyde and hydrogen in the presence of a copper- and aluminium-containing hydrogenation catalyst which has been precipitated in a specific manner and has specific properties, and in the presence of phosphoric acid, at a temperature of 50 to 150 DEG C. The compounds which can be prepared by the process of the invention are valuable starting substances for the synthesis of dyes, in particular rhodamine, oxazine and reactive dyes, and furthermore of pharmaceuticals and pesticides.