作者:Karem Sabah、Thorsten Heidelberg、Rauzah Hashim
DOI:10.1016/j.carres.2011.03.002
日期:2011.5
A series of crown ethers involving lauryl glucoside were synthesized and their assembly behavior in water was studied. The synthesis applied a simple protection scheme based on benzylidenation for the glycolipid, and cation templating for the macrocycle. A sequential build-up of the crown ether by bis-hydroxylethylation of the glucoside followed by reaction with di-, tri-, or tetraethylene glycol ditosylate
合成了一系列涉及月桂基葡糖苷的冠醚,并研究了它们在水中的组装行为。该合成对糖脂应用了基于亚苄基的简单保护方案,对大环化合物采用了阳离子模板。相较于用四乙二醇二甲苯磺酸酯的单步环化,通过葡萄糖苷的双羟乙基化依次与二-,三-或四乙二醇二甲苯磺酸酯反应而连续形成冠醚,可提供更好的大环化合物收率。含有多达六个氧的大环化合物显示出对钠的亲和力明显高于对钾的亲和力,而对于21冠7化合物则发现更有效的钾络合。