从核磁共振的化学位移探讨取代苯亲电取代反应的活性和区域选择性
王永强

An Insight into Activity & Regioselectivity of Electrophilic Substitution of Benzenes Based on Chemical Shift of Nuclear Magnetic Resonance
Yongqang Wang
图2 苯环上的芳香亲电取代反应的机理