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以联苯为原料，经傅－克酰基化、溴代及黄鸣龙还原三步反应，制得目标化合物，收率比文献值提高了３１％。
Using biphenyl as raw material, the target compound was obtained via Friedel-Crafts acylation, bromination and yellowing reduction in three steps. The yield was 31% higher than the literature value.