发明名称 |
Catalyst recycle in liquid phase halogen exchange reaction. |
摘要 |
<p>(Trifluoromethyl)pyridines prepared by the metal halide catalyzed fluorine for chlorine exchange in the corresponding trichloromethylpyridines are directly separated from the reaction vessel by distillation and the residue from the distillation is employed to catalyze additional fluorine for chlorine exchange.</p> |
申请公布号 |
EP0256146(A1) |
申请公布日期 |
1988.02.24 |
申请号 |
EP19860111102 |
申请日期 |
1986.08.11 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
FUNG, ALEXANDER P. |
分类号 |
B01J27/043;B01J27/10;C07D211/36;C07D213/26;C07D213/61;(IPC1-7):C07D213/61 |
主分类号 |
B01J27/043 |
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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