发明名称 |
Process for the preparation of lauryllactam |
摘要 |
<p>The use of methanesulfonic acid as a replacement for sulfuric acid in both stages overcomes oxime deposition problems and side reactions. The preparation of lauryl lactam comprises: (a) A photochemical reaction of cyclododecane, dissolved in an organic solvent, with a nitrosating agent and hydrogen chloride in the presence of methanesulfonic acid to form the oxime of cyclododecanone; and (b) Submission of the oxime to a Beckmann rearrangement in the presence of methanesulfonic acid.</p> |
申请公布号 |
EP0989118(A1) |
申请公布日期 |
2000.03.29 |
申请号 |
EP19990402108 |
申请日期 |
1999.08.24 |
申请人 |
ATOFINA |
发明人 |
OLLIVIER, JEAN;DRUTEL, DAMIEN |
分类号 |
C07D227/02;C07D201/04;(IPC1-7):C07D201/04 |
主分类号 |
C07D227/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|