Browsing by Author "Erk, Çakιl L."
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The synthesis of novel crown ethers. Part IV. Coumarin derivatives of crown-6 and cation binding from fluorescence spectra Erk, Çakιl L.; Göçmen, Ayten; Bulut, Mustafa (Editura Stiintifica F. M. R., 1998)4-H, 4-methyl and 4-phenyl-1-benzopyran-2-one derivatives of crown-6 derivatives were synthesised from 6,7- and 7,8-dihydroxy-1-benzopyran-2-one reacting with pentaethylene glycol ditosylate in K2CO3/DMF/water. The ...