Synthesis of 5-dialkyl(aryl)aminomethyl-8-hydroxyquinoline dansylates as selective fluorescent sensors for Fe3+.
A series of 5-dialkyl(aryl)aminomethyl-8-hydroxyquinoline dansylates were synthesized and their fluoroionophoric properties toward representative alkali ions, alkaline earth ions and transition metal ions were investigated. Among the selected ions, Fe3+ caused considerable quenching of the fluorescence, while Cr3+ caused quenching to some extent. The absence of any significant fluorescence quenching effects of the other ions examined, especially Fe2+, renders these compounds highly useful Fe3+-selective fluorescent sensors.
Peng
Ruogu
R
The Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, PR China. prg@mails.tsinghua.edu.cn
Wang
Feng
F
Sha
Yaowu
Y
D005290:Ferric Compounds / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis*; D006912:Hydroxyquinolines / Q000138:chemical synthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization
D005290:Ferric Compounds; D005456:Fluorescent Dyes; D006912:Hydroxyquinolines