公开(公告)号：ES2083657T3

公开(公告)日：1996-04-16

申请号：ES92119691

申请日：1992-11-19

Applicant: BASF AG

Inventor： REUTER PETER DR ,  WEBER WILLI ALBERT ,  DIEM HANS DR

IPC: C07C209/18

Abstract: Process for the preparation of N,N-dialkylarylamines (I) by reacting arylamines (II) with alcohols (IIIa) or dialkyl ethers (IIIb) in the presence of an oxyacid of phosphorus or of an ammonium salt thereof as catalyst, characterised in that the oxyacid of phosphorus is reacted with an arylamine (IV) before the beginning of the reaction. The invention furthermore relates to the regeneration of the catalyst, by interrupting the reaction occasionally and treating the catalyst phase with steam or water at 100 to 300 DEG C.

公开(公告)号：DE59205474D1

公开(公告)日：1996-04-04

申请号：DE59205474

申请日：1992-11-19

Applicant: BASF AG

Inventor： REUTER PETER DR ,  WEBER WILLI ALBERT ,  DIEM HANS DR

IPC: C07C209/18

Abstract: Process for the preparation of N,N-dialkylarylamines (I) by reacting arylamines (II) with alcohols (IIIa) or dialkyl ethers (IIIb) in the presence of an oxyacid of phosphorus or of an ammonium salt thereof as catalyst, characterised in that the oxyacid of phosphorus is reacted with an arylamine (IV) before the beginning of the reaction. The invention furthermore relates to the regeneration of the catalyst, by interrupting the reaction occasionally and treating the catalyst phase with steam or water at 100 to 300 DEG C.

公开(公告)号：DE4139362A1

公开(公告)日：1993-06-03

申请号：DE4139362

申请日：1991-11-29

Applicant: BASF AG

Inventor： REUTER PETER DR ,  WEBER WILLI ALBERT ,  DIEM HANS DR

IPC: C07C209/18

Abstract: Process for the preparation of N,N-dialkylarylamines (I) by reacting arylamines (II) with alcohols (IIIa) or dialkyl ethers (IIIb) in the presence of an oxyacid of phosphorus or of an ammonium salt thereof as catalyst, characterised in that the oxyacid of phosphorus is reacted with an arylamine (IV) before the beginning of the reaction. The invention furthermore relates to the regeneration of the catalyst, by interrupting the reaction occasionally and treating the catalyst phase with steam or water at 100 to 300 DEG C.