Efficient route to hybrid polypyridine–carboxylate ligands for lanthanide complexation
作者:Samir Mameri、Loïc Charbonnière、Raymond Ziessel
DOI:10.1016/j.tetlet.2007.10.121
日期:2007.12
An efficient methodology for the preparation of aminobutyl-bromo-terpyridine is described using a preformed imine prepared from a gem-dibromomethyl terpyridine derivative and the primary amine and further reduced to the secondary amine. Alkylation with pyridine, bipyridine, or terpyridine residues in the presence of a mineral base provides highly functionalized asymmetrical and symmetrical N-heterocyclic
使用由宝石-二溴甲基叔吡啶衍生物和伯胺制备并进一步还原为仲胺的预制亚胺,描述了一种制备氨基丁基-溴-叔吡啶的有效方法。在矿物碱的存在下与吡啶,联吡啶或三联吡啶残基进行烷基化可提供高度官能化的不对称和对称N杂环配体。使所有含溴的产物进行碳烷氧基化/水解反应,得到所需的羧酸。在中性水溶液条件下制备稳定的Eu配合物,其中一些显示出令人感兴趣的光谱性质。