摘要
本文研究了合成+溴联苯的直接溴化法。在三氯化铝的催化作用下,联苯在过量无水溴素中能够顺利实现全环溴化,收率可达98％;副产物以溴化物形式回收,总溴回收率大于90％。此方法亦适合于工业化生产。
A study for the synthesis of decabromobiphenyl by means of direct bromination has been made. In presence of catalyst AICI_3, the complete bromination of biphenyl in excess bromine can be achieved easily, and the yield of 98% is obtained. A procedure for recovery of the byproduct (HBr) as bromide is also developed, total reeovery of bromine is>90%. This method may be useful for industry manufacture 0f C_(12) Br_B.
关键词
十溴联苯
直接溴化
阻燃剂
decabromobiphenyl
driect bromination
flame retardant
