Invention Grant
US07868213B2 1,4-bis(bromodifluoromethyl) tetrafluorobenzene and producing method thereof
有权
1,4-二（溴二氟甲基）四氟苯及其制备方法
- Patent Title: 1,4-bis(bromodifluoromethyl) tetrafluorobenzene and producing method thereof
- Patent Title (中): 1,4-二（溴二氟甲基）四氟苯及其制备方法
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Application No.: US12219796Application Date: 2008-07-29
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Publication No.: US07868213B2Publication Date: 2011-01-11
- Inventor: Chuan-Yu Chou , Po-Chen Chang , Chun-Hsu Lin , Shieh-Jun Wang
- Applicant: Chuan-Yu Chou , Po-Chen Chang , Chun-Hsu Lin , Shieh-Jun Wang
- Applicant Address: TW TW
- Assignee: Yuan-Shin Materials Technology Corp,Chung-Shan Institute of Science and Technology, Armaments Bureau. M.N.D.
- Current Assignee: Yuan-Shin Materials Technology Corp,Chung-Shan Institute of Science and Technology, Armaments Bureau. M.N.D.
- Current Assignee Address: TW TW
- Agency: Bacon & Thomas, PLLC
- Priority: TW96150785A 20071228
- Main IPC: C07C22/00
- IPC: C07C22/00 ; C07C17/20
Abstract:
A method for producing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) is disclosed. The target compound is predicted as a very potent monomer for low dielectric constant material. This method comprises the following steps: (a) mixing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (DFMTFB), a bromination agent, and a solvent (with or without) to form a mixture; (b) heating the mixture under UV radiation; and (c) purifying the resultant to obtain 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) with high purity.
Public/Granted literature
- US20090171130A1 1, 4-bis (bromodifluoromethyl ) tetrafluorobenzene and producing method thereof Public/Granted day:2009-07-02
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