发明公开
- 专利标题: Halogenation process
- 专利标题(中): Halogenierungsverfahren。
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申请号: EP90300625.2申请日: 1990-01-22
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公开(公告)号: EP0380264A2公开(公告)日: 1990-08-01
- 发明人: Wright, Ian Glaisby
- 申请人: DowElanco
- 申请人地址: 9002 Purdue Road Indianapolis, Indiana 46268-1189 US
- 专利权人: DowElanco
- 当前专利权人: DowElanco
- 当前专利权人地址: 9002 Purdue Road Indianapolis, Indiana 46268-1189 US
- 代理机构: Raynor, John
- 优先权: US300633 19890123
- 主分类号: C07D239/90
- IPC分类号: C07D239/90 ; C07D239/95 ; C07D239/94 ; C07D239/88
摘要:
A process for preparing nitrogen-containing heterocyclic compounds that are chloro or bromo substituted at a ring position adjacent to the ring nitrogen atom which comprises reacting a hydroxy-substituted starting material with the kinetic form of a triphenylphosphite-halogen complex.
公开/授权文献
- EP0380264A3 Halogenation process 公开/授权日:1991-02-06
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