发明名称 |
Cyclic perfluoroketones and method of making |
摘要 |
Provided are novel cyclic perfluoroketones which are thermally and chemically stable fluids. They are prepared by reacting perfluorodicarboxylic acid difluorides with carbonates in aprotic polar solvents.
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申请公布号 |
US5247101(A) |
申请公布日期 |
1993.09.21 |
申请号 |
US19920868769 |
申请日期 |
1992.04.16 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
TAKAGO, TOSHIO;TARUMI, YASUO;YAMAGUCHI, KOUICHI |
分类号 |
C07D319/12;C07D321/00;C07D321/08;C07D323/00;C07D325/00 |
主分类号 |
C07D319/12 |
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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