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Synthese und Eigenschaften einiger neuer hydroxylsubstituierter Laserfarbstoffe auf Cumarinbasis Lumineszierende Heterocyclen, 8. Mitt.

Synthesis and properties of some new hydroxy substituted coumarin derived laser dyes

  • Organische Chemie und Biochemie
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Monatshefte für Chemie - Chemical Monthly Aims and scope Submit manuscript

Abstract

Condensation of ethyl acetoacetate with 1,3-, 1,6-and 2,7-dihydroxynaphthalene, resp., as well as with 4,7-dihydroxycoumarin affords four new coumarines (1–4). The pyronocoumarin system of4 may alternatively be synthesized by reacting 3-anilinomethylene-7-hydroxy-2,4-chromandione with nitriles such as ethyl cyanoacetate, malodinitrile, cyanoacetamide, 4-nitrophenylatonitril or ω-cyanoacetophenone to give the strongly fluorescent pyrones5 a-e. The solvent and acidity dependent absorption and emission spectra are presented.2, 3, 4 and5 a-c lase very efficiently, giving green, yellow or red laser light.

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Authors and Affiliations

  1. Institut für Organische Chemie, Universität Graz, A-8010, Graz, Österreich

    Otto S. Wolfbeis

Authors
  1. Otto S. Wolfbeis
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Additional information

7. Mitt.:O. S. Wolfbeis, Mh. Chem.109, 905 (1978).

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Wolfbeis, O.S. Synthese und Eigenschaften einiger neuer hydroxylsubstituierter Laserfarbstoffe auf Cumarinbasis Lumineszierende Heterocyclen, 8. Mitt.. Monatshefte für Chemie 109, 1413–1421 (1978). https://doi.org/10.1007/BF00906054

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  • DOI: https://doi.org/10.1007/BF00906054

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