Colour-responsive fluorescent oxy radical sensors.
A series of fluorene-fused benzoquinones (Q1-Q5) were prepared by thermolysis of 4-fluorenyl-4-hydroxycyclobutenones. Red fluorescence observed for Q2 is switched by reduction to blue fluorescence by formation of the hydroquinone. Reaction with hydrogen peroxide restores the original fluorescence colour. The potential use of compound Q2 as a reactive oxygen species detector is discussed.
Istanbul Technical University, Department of Chemistry, 34469 Maslak, Istanbul, Turkey. yucelbar@itu.edu.tr
Baris
B
Yucel
Bahar
B
Sanli
Huseyin
H
Akbulut
Suheyla
S
Ozbey
Andrew C
AC
Benniston
D016227:Benzoquinones / Q000737:chemistry; D003116:Color; D003500:Cyclization; D005456:Fluorescent Dyes / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D017382:Reactive Oxygen Species / Q000737:chemistry*
D016227:Benzoquinones; D005456:Fluorescent Dyes; D017382:Reactive Oxygen Species; C004532:quinone