Selective Fluorescence Sensing of Copper(II) and Water via Competing Imine Hydrolysis and Alcohol Oxidation Pathways Sensitive to Water Content in Aqueous Acetonitrile Mixtures
作者:Kadarkaraisamy Mariappan、Madhubabu Alaparthi、Gerald Caple、Vinothini Balasubramanian、Mariah M. Hoffman、Mikaela Hudspeth、Andrew G. Sykes
DOI:10.1021/ic402723c
日期:2014.3.17
Addition of hydrazines to a 1,8-disubstituted anthraquinone macrocycle containing a polyether ring produces site-selective imination, where hydrazone formation produces the more sterically hindered adduct. Reduction of the remaining carbonyl group to a secondary alcohol followed by addition of copper(II) ion causes intense yellow fluorescence to occur, which is selective for this metal cation and allows