Fast and Convenient Divergent Synthesis of Aliphatic Ester Dendrimers by Anhydride Coupling
作者:Henrik Ihre、Omayra L. Padilla De Jesús、Jean M. J. Fréchet
DOI:10.1021/ja010524e
日期:2001.6.1
A novel divergent approach was developed for the synthesis of dendritic aliphatic polyester structures using an acetal-protected anhydride derivative of 2,2-bis(hydroxymethyl)propionic acid as the acylating agent. This divergent synthesis is remarkable, because unlike all others, it only requires a small excess of reagent to achieve quantitative growth, and it requires no means of purification other
使用缩醛保护的 2,2-双(羟甲基)丙酸酐衍生物作为酰化剂,开发了一种新的发散方法,用于合成树枝状脂肪族聚酯结构。这种发散合成非常引人注目,因为与所有其他合成不同,它只需要少量过量的试剂即可实现定量增长,除了简单的溶剂萃取或沉淀外,不需要任何纯化手段。以1,1,1-三(羟基苯基)乙烷为核心分子,以高产率和高纯度制备了分子量为30 711道尔顿和192个掩蔽羟基的单分散第六代树枝状聚合物。