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process for the production of tribromphenol, chlordibromphenol or dichlorbromphenol
process for the production of tribromphenol, chlordibromphenol or dichlorbromphenol
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机译：三溴苯酚，氯二溴苯酚或二氯溴苯酚的生产方法
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摘要
In the parent patent, pure bromophenols (I) are prepd. by reacting opt. halogenated phenols with H2O2 in an aq. HBr soln.. In the addn., the aq. HBr used in reaction contains 0.1-20 wt.% HCl and/or HF, as contaminants, in addn. to 25-62 wt.% HBr. Colourless (I) are obtd. in 99% yield, using contaminated HBr without need for cumbersome purification.
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