公开(公告)号：DE3140227C1

公开(公告)日：1982-12-16

申请号：DE3140227

申请日：1981-10-09

Applicant: DEGUSSA

Inventor： EFFENBERGER FRANZ PROF DR ,  BEISSWENGER THOMAS DIPL-CHEM

IPC: C07B61/00 ,  B01J23/00 ,  B01J23/36 ,  B01J27/00 ,  B01J27/04 ,  C07C67/00 ,  C07C231/00 ,  C07C231/10 ,  C07C231/18 ,  C07C233/46 ,  C07C233/47 ,  C07C313/00 ,  C07C319/20 ,  C07C323/59 ,  C07C103/46 ,  C07C103/48 ,  C07C149/41

Abstract: The subject matter of the invention is a process for the production of N-acetyl-2,3-dehydroaminocarboxylic acid esters by reaction of the corresponding 2-azido-carboxylic acid esters with a mixture of one part by volume of acetic anhydride and 1.5 to 5 parts by volume of acetic acid in the presence of rhenium VII sulfide and/or oxide and at a temperature between 50 DEG and 150 DEG C., in a given case, in the simultaneous presence of dry hydrogen chloride.

公开(公告)号：AT12765T

公开(公告)日：1985-05-15

申请号：AT82107926

申请日：1982-08-28

Applicant: DEGUSSA

Inventor： EFFENBERGER FRANZ DR PROF ,  BEISSWENGER THOMAS DIPL-CHEM

IPC: C07B61/00 ,  B01J23/00 ,  B01J23/36 ,  B01J27/00 ,  B01J27/04 ,  C07C67/00 ,  C07C231/00 ,  C07C231/10 ,  C07C231/18 ,  C07C233/46 ,  C07C233/47 ,  C07C313/00 ,  C07C319/20 ,  C07C323/59 ,  C07C103/46 ,  C07C103/48 ,  C07C149/43