- Preparation method of 1-bromo-2,3,5-trifluorobenzene
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The invention discloses a preparation method of 1-bromo-2,3,5-trifluorobenzene. The preparation method comprises following steps: a, raw material treatment; b, bromination reaction; c, diazotization treatment, and d, deamination treatment. According to th
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Paragraph 0020; 0021; 0022
(2018/03/25)
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- Method for producing tetrakis ( fluoroaryl) borate-magnesium compound
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Fluoroaryl magnesium halide is reacted with a boron compound so that a molar ratio of the fluoroaryl magnesium halide to the boron compound is not less than 3.0 and not more than 3.7, so as to produce a tetrakis (fluoroaryl) borate·magnesium compound. With this method, there occurs no hydrogen fluoride which corrodes a producing apparatus and requires troublesome waste water treatment.
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