G. Cherry等用一种苯酚醚和溴化钾(钠)在HF-SbF_5(4-20mol％SbF_5)存在下于-78℃进行反应,然后将混合物加热至-40℃,所得到的间位溴化苯甲醚的产率很高。反应中未见有氢气逸出,说明HB_Y中的溴并非被质子所氧化,氧化剂可能是SbF_5。但对此反应中起作用的亲电子物种的详情至今尚未弄清楚。如用单质溴代替溴化物时反应速率加快,有确定的产物分布。 G. Cherry et al. Reacted with a phenol ether and potassium bromide (sodium) at -78 ° C in the presence of HF-SbF_5 (4-20 mol% SbF_5) and the mixture was then heated to -40 ° C. The resulting meta The yield of anisole is high. No hydrogen evolved during the reaction, indicating that bromine in HB_Y is not oxidized by protons and that the oxidant may be SbF_5. However, the details of electrophilic species that play a role in this response have not yet been clarified. Such as bromine with elemental bromine to accelerate the reaction rate, there is a definite product distribution.