摘要
电子效应和空间效应是影响有机反应的重要因素,共轭体系中极性交替的特点在共轭二烯与α,β-不饱和醛酮的1,2-加成和1,4-加成反应、苯环上的亲电取代反应等有机反应中表现明显,掌握共轭体系中极性交替的特点对于此类有机反应的学习可以起到事半功倍的效果。
Electronic effect and conjugative effect are the key factors in organic reactions. The aspect of alternating polarity in the conjugative system is very obvious in the reactions such as 1, 2-addition and 1, 4-addition of conjugative alkadiene or α, βunsaturated aldehyde and ke- tone, electrophilie substitution of benzene direvatives. Mastering the characteristics of alternating polarity in the conjugative system can get twice the result with half the effort in studying these reactions mentioned above.
出处
《化学教育》
CAS
北大核心
2015年第20期10-12,共3页
Chinese Journal of Chemical Education
基金
湖北省教育厅教学研究项目(JYS12009
JYS11001)
关键词
共轭效应
极性交替
有机反应
conjugative effect
alternating polarity
organic reaction
