Electronic effect and Amromatic transitun can used to explain electrophilic substitute reaction of Heterocyclic Compounds. This thesis extra explain that thestable of link influence to the reaction.

• 本文试图从传统电子效应及芳香过渡态正离子稳定性角度,对五元杂环化合物代表物:呋喃、吡咯、噻吩的亲电取代反应难易程度作了解释。同时,扩展了环稳定性对反应活性的影响。