Regular Papers
2-Hydroxytryptanthrin and 1-Formyl-2-hydroxytryptanthrin as Fluorescent Metal-ion Sensors and Near-infrared Fluorescent Labeling Reagents
2018 年 43 巻 2 号 p. 109-112
詳細
2018 年 43 巻 2 号 p. 109-112
2-Hydroxy-1-tryptanthrin (T2OH) and 1-formyl-2-hydroxytryptanthrin (T2OH1CHO) were synthesized as fluorescent metal-ion sensors and near-infrared fluorescent labeling reagents. T2OH was well suited for use as a fluorescent chemosensor for Cu2+ and Al3+ in an acetonitrile solution, and as a near-infrared fluorescent (λf, max > 650 nm) labeling reagent. However, it was unable to detect changes in a surrounding aqueous environment (DMSO/H2O = 1/9, v/v). Meanwhile, T2OH1CHO was well suited for use as a fluorescent chemosensor for Al3+ in acetonitrile and aqueous solutions.
