|
|
| 專利名稱 | 1, 4-bis (bromo difluoromethyl) tetrafluoro benzene and its manufacturing method | | 專利證號 | JP05301984B2 | | 國別 | 日本 | | 獲證日期 | 2013-09-25 | | 專利摘要 | 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. | IPC國際分類號 | C07C001714 |
|