发明申请
US20120184777A1 PROCESS FOR PREPARING 2,2-DIFLUOROETHYLAMINE FROM 2,2-DIFLUORO-1-CHLOROETHANE AND AMMONIA
有权
从2,2-二氟-1-氯代乙酸和氨基磺酸制备2,2-二氟乙酰胺的方法
- 专利标题： PROCESS FOR PREPARING 2,2-DIFLUOROETHYLAMINE FROM 2,2-DIFLUORO-1-CHLOROETHANE AND AMMONIA
- 专利标题（中）： 从2,2-二氟-1-氯代乙酸和氨基磺酸制备2,2-二氟乙酰胺的方法
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申请号： US13348484申请日： 2012-01-11
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公开(公告)号： US20120184777A1公开(公告)日： 2012-07-19
- 发明人: Norbert LUI , Rafael WARSITZ , Christian FUNKE , Christian SEVERINS
- 申请人： Norbert LUI , Rafael WARSITZ , Christian FUNKE , Christian SEVERINS
- 申请人地址： DE Monheim
- 专利权人： BAYER CROPSCIENCE AG
- 当前专利权人： BAYER CROPSCIENCE AG
- 当前专利权人地址： DE Monheim
- 优先权： EP11150885.9 20110113
- 主分类号： C07C209/08
- IPC分类号： C07C209/08
摘要：
Process for preparing 2,2-difluoroethylamine, comprising the following steps: (i) mixing 2,2-difluoro-1-chloroethane and gaseous, liquid or supercritical ammonia in a pressure-stable, closed reaction vessel under a pressure in the range from 10 to 180 bar; (ii) reacting the reaction mixture at a reaction temperature in the range from 80° C. to 200° C.; (iii) letting down the reaction mixture and isolating 2,2-difluoroethylamine.