发明名称 |
Process for producing 3-chloro-5-trifluoromethylpyridines |
摘要 |
A process for producing a 3-chloro-5-trifluoromethylpyridine derivative comprises reacting a 5-trifluoromethylpyridine derivative having a hydrogen atom at 3-position with chlorine. The process is characterized by reacting said 5-trifluoromethylpyridine derivative with chlorine in a vapor phase in the presence of a catalyst selected from the group consisting of activated carbon and a chloride of a metal element selected from the group consisting of iron, antimony, copper and zinc.
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申请公布号 |
US4490534(A) |
申请公布日期 |
1984.12.25 |
申请号 |
US19820434368 |
申请日期 |
1982.10.14 |
申请人 |
ISHIHARA SANGYO KAISHA LTD. |
发明人 |
FUJIKAWA, KANICHI;TSUJII, YASUHIRO;SHIGEHARA, ITARU;ISOGAI, TATSUO;YOSHIZAWA, HIROSHI;MIYAJI, MIKIO |
分类号 |
C07D213/61;(IPC1-7):C07D211/72;C07D211/84 |
主分类号 |
C07D213/61 |
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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