发明授权
- 专利标题： Method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene
- 专利标题（中）： 1,4-双（二氟甲基）四氟苯的制备方法
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申请号： US12219789申请日： 2008-07-29
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公开(公告)号： US07544846B1公开(公告)日： 2009-06-09
- 发明人: Chun-Hsu Lin , Chac-Chou Tu , Chan-Yuan Ho , Chuan-Yu Chou , Wei-Hsiung Ou , Shieh-Jun Wang
- 申请人： Chun-Hsu Lin , Chac-Chou Tu , Chan-Yuan Ho , Chuan-Yu Chou , Wei-Hsiung Ou , Shieh-Jun Wang
- 申请人地址： TW TW
- 专利权人： Yuan-Shin Materials Technology Corp.,Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D.
- 当前专利权人： Yuan-Shin Materials Technology Corp.,Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D.
- 当前专利权人地址： TW TW
- 代理机构： Bacon & Thomas, PLLC
- 优先权： TW96150782A 20071228
- 主分类号： C07C22/00
- IPC分类号： C07C22/00 ; C07C17/20
摘要：
A method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene is disclosed, which has the following steps: (a) mixing 1,4-bis(dichloromethyl)tetrafluorobenzene, a catalyst, an aprotic polar solvent, and an alkali metal fluoride to form a reaction mixture; (b) heating the reaction mixture; and (c) purifying the resultant to obtain 1,4-bis(difluoromethyl)tetrafluorobenzene.
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