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http://dx.doi.org/10.5012/jkcs.2014.58.3.297

The Synthesis and Light Absorption Behaviour of Novel Coumarin Chromophores  

An, Kyoung Lyong (Interface Chemistry & Engineering Research Team, Korea Research Institute of Chemical Technology)
Shin, Seung Rim (Interface Chemistry & Engineering Research Team, Korea Research Institute of Chemical Technology)
Jun, Kun (Interface Chemistry & Engineering Research Team, Korea Research Institute of Chemical Technology)
Park, Soo Youl (Interface Chemistry & Engineering Research Team, Korea Research Institute of Chemical Technology)
Publication Information
Abstract
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.
Keywords
Coumarin; Knoevenagel condensation; Fluorescence; Chromophores;
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