Chromophoric and Dendritic Phosphoramidites Enable Construction of Functional Dendrimers with Exceptional Brightness and Water Solubility
作者:Andrew D. Shaller、Wei Wan、Baoming Zhao、Alexander D. Q. Li
DOI:10.1002/chem.201403445
日期:2014.9.15
construct functional dendrimers. When highly twisted chromophores are chosen and the proper spacers and dendrons are introduced, the resultant dendrimers emit exceptionally bright fluorescence. Chromophores, spacers, and dendrons are stitched together by efficient phosphoramidite reagents, which afford high‐yield water‐soluble phosphodiester linkages after deprotection. The resulting water‐soluble dendrimers
分子探针的荧光亮度决定了是否可以对其进行有效的测量,其水溶性决定了它是否可以应用于现实世界的生物系统中。然而,比最高效的荧光染料更亮的分子或比量子点更亮的颗粒很难得到,特别是当它们也必须溶于水时。在本报告中,发色亚磷酰胺用于固态合成以构建功能性树状聚合物。当高度扭曲的发色团的选择和适当的间隔件和树突的引入,得到的树枝状聚合物发射格外明亮的荧光。发色团,间隔基和树突通过有效的亚磷酰胺试剂缝合在一起,这些试剂在脱保护后可提供高产率的水溶性磷酸二酯键。