The preparation of pentabromotoluene was effected by utilizing dichloroethane and liquid bromine as reaction solvent, and their advantages and defects were pointed out.
介绍了以二氯乙烷或液溴为溶剂制取五溴甲苯的方法及其优缺点。
The first route was using the liquid bromine to aromatize the 4-chlorotetrahydrophthalic anhydride to 4-chlorophthalic anhydride, The yield was 89%, and the purity was more than 99%.
第一种方法：用液溴作芳化试剂，将4-氯代四氢苯酐芳化为4-氯代苯酐，收率达到89%，纯度大于99%；
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