Preparation process of fluorine substituted aromatic compound
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Dec 21, 1999
filing date -
Dec 22, 1998
priority date (Note) -
Expired
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Abstract
A preparation process of a fluorine substituted aromatic compound comprising reacting an alkali metal or alkali earth metal salt of an aromatic compound having a hydroxy group with an organic fluorinating agent is disclosed. As a representative fluorinating agent, a bis-dialkylamino-difluoromethane compound, for example, 2,2'-difluoro-1,3-dimethylimidazolidine, is exemplified. According to the process, an industrially useful fluorinated aromatic compound, for example, a fluorobenzene, a fluorine substituted benzophenone, a fluorine substituted diarylsulfone can be prepared with ease in economy without specific equipment.
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