A new, direct, efficient, and transition-metal-free method is reported for the synthesis of β-bromostyrenes from styrenes by using N-bromosuccinimide as the brominating reagent and sodium persulfate (Na2S2O8) as the oxidant. This convenient and concise reaction is practical, operationally simple, and can be adapted for large-scale syntheses.

中文翻译：

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N-溴代琥珀酰亚胺和过硫酸钠直接溴化苯乙烯合成 β-溴苯乙烯

报道了一种新的、直接、高效且无过渡金属的方法，该方法使用 N-溴代琥珀酰亚胺作为溴化试剂和过硫酸钠 (Na2S2O8) 作为氧化剂从苯乙烯合成 β-溴苯乙烯。这种方便简洁的反应实用，操作简单，可适用于大规模合成。