Synthesis of dendritic polypyridines with ethoxycarbonyl groups as surface functionality
作者:Gavino Chessa、Alberto Scrivanti
DOI:10.1039/p19960000307
日期:——
The convergent synthesis of dendritic polypyridines having an outer tier of pyridine rings 2,6-difunctionalized with ethoxycarbonyl groups is described. The dendritic fragments were prepared using 4-benzyloxy-2,6-bis(chloromethyl)pyridine and diethyl 4-hydroxypyridine-2,6-dicarboxylate as the building blocks. The final step in the synthesis was the coupling of the dendritic fragments to the trifunctional core 1,3,5-tris(bromomethyl)benzene. The data obtained by spectroscopic techniques correlate well with the structures proposed.
本文介绍了树枝状多吡啶的趋同合成方法,这些树枝状多吡啶的外层吡啶环由乙氧基羰基 2,6-二官能化。树枝状片段是以 4-苄氧基-2,6-双(氯甲基)吡啶和 4-羟基吡啶-2,6-二甲酸二乙酯为构件制备的。合成的最后一步是将树枝状片段与三官能团核心 1,3,5-三(溴甲基)苯偶联。通过光谱技术获得的数据与所提出的结构十分吻合。