Facile Synthesis of Aldehyde-focal Fréchet Type Dendrons and Dendrimers via Staudinger/Aza-Wittig Reactions
作者:Seung-Choul Han、Sung-Ho Jin、Jae-Wook Lee
DOI:10.5012/bkcs.2011.32.10.3624
日期:2011.10.20
Fr$\acutee}$chet-type dendritic benzaldehydes were efficiently synthesized using 3,5-dihydroxybenzaldehyde as an aldehyde focal point functionalized unit by adding a generation to the existing dendron or direct oxidation of Fr$\acutee}$chet-type dendritic benzyl alcohols. These dendritic benzaldehydes were applied for the construction of dendrimers containing secondary amines as connectors via Staudinger/aza-Wittig Reactions with $\alpha}$,$\alpha}'$,-diazidop-xylene core.
通过在现有的树枝状聚合物上增加一代或将Fréchet型树枝状苄醇直接氧化,可以高效地使用3,5-二羟基苯甲醛作为醛焦点功能单元合成了Fréchet型树枝状苯甲醛。这些树枝状苯甲醛通过与$\alpha}$,$\alpha}'$,-二叠氮对二甲苯核心的Staudinger / aza-Wittig反应,应用于构建含有二级胺作为连接剂的树枝状聚合物。