发明名称 |
Process for the production of N-acetyl-2,3-dehydro-aminocarboxylic acid esters |
摘要 |
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.
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申请公布号 |
US4456766(A) |
申请公布日期 |
1984.06.26 |
申请号 |
US19820418843 |
申请日期 |
1982.09.16 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
EFFENBERGER, FRANZ;BEISSWENGER, THOMAS |
分类号 |
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;(IPC1-7):C07C102/04;C07C103/12;C07C149/23;C07C149/31 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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