发明名称 |
PROCESS FOR THE PREPARATION OF PERFLUOROCARBOXYLIC ACIDS |
摘要 |
1. Process for preparing perfluoroalkane-carboxylic acids RF CO2 H wherein RF denotes a straight-chain or branched perfluoroalkyl radical containing from 1 to 20 carbon atoms, characterized in that a perfluoroiodo-alkane RF I is reacted with trichloroethylene in an acidic solvent in the presence of zinc, and then the resulting 2-perfluoroalkyl-1,1-dichloroethylene RF CH = CCI2 is oxidised in a basic medium with the aid of potassium or sodium permanganate at a temperature of at least 80 degrees C.
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申请公布号 |
EP0160577(B1) |
申请公布日期 |
1988.04.13 |
申请号 |
EP19850400170 |
申请日期 |
1985.02.01 |
申请人 |
ATOCHEM |
发明人 |
BLANCOU, HUBERT;COMMEYRAS, AUGUSTE;TEISSEDRE, ROBERT |
分类号 |
C07C53/21;C07C51/00;C07C51/16;C07C51/295;C07C67/00;(IPC1-7):C07C53/21;C07C51/25 |
主分类号 |
C07C53/21 |
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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