发明授权
US06300497B1 Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative
失效
从含有胺和吖庚因衍生物的混合物中分离出吖庚因衍生物的方法
- 专利标题: Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative
- 专利标题(中): 从含有胺和吖庚因衍生物的混合物中分离出吖庚因衍生物的方法
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申请号: US09623699申请日: 2000-09-07
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公开(公告)号: US06300497B1公开(公告)日: 2001-10-09
- 发明人: Alwin Rehfinger , Hermann Luyken
- 申请人: Alwin Rehfinger , Hermann Luyken
- 优先权: DE19812427 19980320
- 主分类号: C07D22304
- IPC分类号: C07D22304
摘要:
A process for distillative removal of part or all of an azepine derivative (III) selected from the group consisting of aminohexylideneimine, tetrahydroazepine, hexylhexahydroazepine and aminohexylhexahydroazepine from a mixture (II) comprising an azepine derivative (III) and an amine (I) comprises conducting the distillation with an overhead temperature of from 160 to 250° C.
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