T. Schwarze, A. Kelling, H. Müller, M. Trautmann, T. Klamroth, O. Baumann, P. Strauch, H.-J. Holdt
N-2-Pyridinylmethyl-N'-arylmethyl-diaminomaleonitriles: New Highly Selective Chromogenic Chemodosimeters for Copper(II)
Chem. Eur. J. 2012, 18, 10506
DOI: 10.1002/chem.201201161
The copper(II)-promoted air oxidation of 1–3 to form 4–6 permits the highly selective colorimetric detection of Cu2+ ions (see figure). The formation of copper(II) complexes of 4–6 proceeds rapidly, and the chemodosimeters 1–3 are viable at physiological pH.
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