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KMID : 1059520140580030297
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Journal of the Korean Chemical Society
2014 Volume.58 No. 3 p.297 ~ p.302
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The Synthesis and Light Absorption Behaviour of Novel Coumarin Chromophores
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An Kyoung-Lyong
Shin Seung-Rim
Jun Kun
Park Soo-Youl
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Abstract
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The synthetic route to coumarin systems is well established and one approach of particular interest leads to the intermediate 7-diethylamino-3-formylcoumarin. A combination of the N,N-diethylamino-coumarin donor with a wide range of acceptor groups of varying electron withdrawing strength should permit the synthesis of a series of extended coumarin dyes with absorption maxima range from 500 to 600 nm, or even beyond. In this communication, a novel efficient synthesis of indoles, benzothiazole and benzoxazole based on coumarin chromophores were achieved and the coloristic and fluorophoric properties of these chromophores were studied.
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KEYWORD
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Coumarin, Knoevenagel condensation, Fluorescence, Chromophores
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