Convergent Synthesis and Characterization of Dumbbell Type Dendritic Materials by Click Chemistry
作者:Sae-Reum Sung、Seung-Choul Han、Sung-Ho Jin、Jae-Wook Lee
DOI:10.5012/bkcs.2011.32.11.3933
日期:2011.11.20
efficient stitching methods for the synthesis of dendrimers with linear PEG units at a core, as dendritic-linear-dendritic materials, were developed. The synthetic strategy involved the click reaction between an alkyne and an azide. The linear core building blocks, three dialkyne-PEG units, were chosen to serve as the alkyne functionalities for dendrimer growth via click reactions with the azide-dendrons
开发了用于合成以线性 PEG 单元为核心的树枝状聚合物作为树枝状-线性-树枝状材料的通用、快速和有效的拼接方法。合成策略涉及炔烃和叠氮化物之间的点击反应。选择线性核心构件,三个二炔-PEG 单元,通过与叠氮化物-树枝的点击反应作为树枝状大分子生长的炔官能团。这三种结构单元与叠氮化物功能化的 Frechet 型树突一起采用收敛策略合成具有不同线性核心单元的 Frechet 型树状大分子。它们的树枝状大分子结构通过 1 H 和 13 C NMR 光谱、IR 光谱、质谱和 GPC 分析得到证实。