Novel fluorescence probes based on 2,6-donor-acceptor-substituted anthracene derivatives |
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Authors: | Ihmels H Meiswinkel A Mohrschladt C J |
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Affiliation: | Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany. ihmels@chemie.uni-wuerzburg.de |
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Abstract: | [reaction: see text] The fluorescence properties of selected derivatives of 6-methoxyanthracene-2-carboxylic acid were studied. The corresponding ester and oxazoline derivatives exhibit a moderate solvatochromism, which is caused by the donor-acceptor interplay. The fluorescence band shift and intensity of oxazoline 1f may be reversibly modulated by protonation or complexation with silver ions; thus, the oxazoline heterocycle serves as a useful substituent with switchable acceptor strength. |
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