Because the reaction initiated by the attachment of an electrophile, the process is called an electrophilic addition reaction . 因为反应是由亲电试剂的附加而开始的，所以这个过程叫做亲电加成反应。
3.
Because the reaction is initiated by the attachment of an electrophile, the process is called an electrophilic addition reaction . 因为反应是由亲电试剂的附加而开始的，所以这个过程叫做亲电加成反应。
4.
The aromatic electrophilic substitution reaction was studied using nmr for the first time . on the base of substituents effects on the benzene , the orientation effect and reactivity was analysised quantitatively . this method may mostly predict the aromatic electrophilic substitution reaction 首次采用nmr研究芳基亲电取代反应.依据取代基对苯的影响，定量分析了定位效应和反应活性.此法对芳基亲电取代反应有一定的预见性
