发明名称 |
Preparation of 3,4,6-trifluorophthalic acid |
摘要 |
3,4,6-trifluorophthalic acid is prepared in high yield by reaction of a 3,4,6-trichloro-N-substituted phthalimide with potassium fluoride at temperatures in the range of 200 DEG to 270 DEG C. in the absence of a catalyst to form the corresponding trifluoro-N-substituted phthalimide which, in turn, is hydrolyzed to form the 3,4,6-trifluorophthalic acid.
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申请公布号 |
US5596104(A) |
申请公布日期 |
1997.01.21 |
申请号 |
US19930077750 |
申请日期 |
1993.06.18 |
申请人 |
OCCIDENTAL CHEMICAL CORPORATION |
发明人 |
O'REILLY, NEIL J.;DERWIN, WILLIAM S.;LIN, HENRY C.;NOWAK, DEANNE M. |
分类号 |
C07C51/00;C07D209/48;(IPC1-7):C07D209/48 |
主分类号 |
C07C51/00 |
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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