论文部分内容阅读
有机化学杂环化合物这章 ,有一个较难向学生解释清楚的问题。就是为什么吡咯的亲电取代反应首先发生在 α位的碳原子上 ,而吡啶的亲电取代反应则首先发生在β位的碳原子上。原因何在 ?教材没多做解释。我认为作为化学教师有必要向学生解释清楚 ,这样才有利于提高学生分析问题的
Organic Chemistry Heterocycles This chapter has a difficult question to explain to students. That is why the electrophilic substitution reaction of pyrrole first occurs on the α-carbon atom, whereas the electrophilic substitution of pyridine first takes place on the β-carbon atom. Why? Text no more explanation. I think it is necessary to explain to students as a chemistry teacher so that it will help students to analyze problems