七十年代以来,中、大环化合物的合成发展十分迅速,成就卓著。国外的实验教学已经反映了这方面的内容。为了更新实验内容,反映现代科学进步水平,我们介绍一个特殊的大环化合物——2、2、7、7、12、12、17、17—八甲基—21、22,23、24—四氧咵哒烯(以下简称八甲基四氧咵哒烯)的合成,可以做为一种类型的实验引入教学。 Since the 1970s, the synthesis of the macrocyclic compounds has developed rapidly and has achieved outstanding achievements. Foreign experimental teaching has reflected this aspect of the content. In order to update the experimental content, reflecting the level of modern science and technology, we introduce a special macrocyclic compound - 2,2,7,7,12,12,17,17-octamethyl-21,22,23,24-tetra The synthesis of oxydimene (hereinafter referred to as octamethyltetraoxydiene) can be introduced as a type of experiment.