The orientation of the macrocyclizacion reaction leading to the di or tetrafunctional titled compounds has been studied for 12 and 24 membered rings containing ethylene dioxy moieties. The reactions were carried out from not activated diol, dithiol or diamine and from their silyl and stannyl derivatives. They were not performed at high dilution. The intracyclic oxygen atoms had a strong influence on
对于包含乙二氧基部分的12和24元环,已经研究了导致二官能或四官能标题化合物的大环化反应的取向。反应是由未活化的二醇,二
硫醇或二胺以及它们的甲
硅烷基和
苯乙烯基衍
生物进行的。它们不是在高稀释度下进行的。环内氧原子对环化朝向单体的取向有很大影响。然而,也可能以10至40%的产率获得二聚体形式。