作者:M. Bulut、Ç L. Erk
DOI:10.1002/jhet.5570380608
日期:2001.11
resolution mass spectroscopy and elemental analysis. Some 1:1 cation association constants, Kb, of the 3-phenyl chromenone crown ethers with Li+, Na+, K+ and Rb+ cations were studied by steady state emission fluorescence spectroscopy; Kb chromenone-crown complexes displayed crown ether-cation binding selectivity rules properly in acetonitrile.
由3-氧代-2-苯基丙酸乙酯,3-氧代-2-(4-甲氧基苯基)-乙基制备3-苯基-和3-(对甲氧基苯基)-7,8-二羟基和-6,7-二羟基色酮。丙酸酯和H 2 SO 4中的三羟基苯。3-芳基-7,8-和3-芳基-6,7-二羟基-2H-色农酮与聚乙二醇的二-二卤化物在DMF / MeCO 3中反应,得到12-Crown- 4、15 -Crown-4和18-Crown-6-chromenones。产物通过IR,1 H NMR,低和高分辨率质谱法以及元素分析鉴定。3-苯基色酮冠醚与Li +,Na +,K +和Rb +的一些1:1阳离子缔合常数K b通过稳态发射荧光光谱研究阳离子。K b色酮-冠状配合物在乙腈中显示出正确的冠醚-阳离子结合选择性规则。