摘要
通过控制条件 ,使两种乙氧基羰基甲氧基杯 [4]间苯二酚芳烃 2 a和 2 b的酯基与 1 ,6-己二胺的一个氨基反应形成酰胺 3 a和 3 b,剩余的一个氨基再与水杨醛反应 ,得到了相应的杯芳烃 Schiff碱衍生物 4a和 4b,对其进行了金属离子的液 -液萃取性能研究 .结果表明 ,Schiff碱基团的引入能大大增强杯芳烃与金属离子的配位能力 ,而杯芳烃空腔的存在又能提高
Two noval calix[4]resorcinarene-based Schiff bases, 4a and 4b, which contain eight or twelve long salicylideneimine chains were easily synthesized by treating the corresponding calix[4]resorcinarenes bearing amine chains with different lengths, 3a and 3b, and salicylaldehyde in alcohol. These two amides, 3a and 3b, were obtained in a high yield by treating activated ethoxycarbonylmethoxy substituted derivatives 2a and 2b with excess 1,6-hexanediamine. All the organic compounds were characterized by IR and 1H NMR spectroscopy. It was found that the functional salicylideneimine arms appended to the peripheries of calix[4]resorcinarenes can fine-adjust the size and shape of the cavity upon complexation with metal ions, which significantly enhances the cation extractability.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第10期1836-1839,共4页
Chemical Journal of Chinese Universities
