1,4-bis(bromodifluoromethyl) tetrafluorobenzene and producing method thereof
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United States of America Patent
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Jan 11, 2011
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app pub date -
Jul 29, 2008
filing date -
Dec 28, 2007
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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.
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