有机化学周环反应规律的探讨与教学实践

A Study and Teaching on Selective Rules of Pericyclic Reaction

用分子轨道对称性守恒原理和前线轨道理论,对周环反应进行了详细探讨.提出了该类反应在加热或光照条件下,很好地预测周环反应发生的可能性和结果,能准确确定操作方式及确定生成物的立体构型等.方法简明实用,易于理解和掌握,方便教学.

This paper discusses the pericyclic Reaction by the molecular conservation of orbital symmetry principle and frontier orbital symmetry theory.Method for predicting the possibility of pericyclic reaction and the configuration of the product under the conditions of heating and illuminating has been proposed.This method is easy to be understand and acceptable for students.