Classical heterocycles with surprising properties: the 4-hydroxy-1,3-thiazoles

• DOI: 10.1016/j.tetlet.2011.02.048
• Publication Date: 2011-02-19T09:37:33Z
• Authors: Eric Täuscher; Dieter Weiß; Rainer Beckert; Jürgen Fabian; Aline Assumpção; Helmar Görls
• Keywords: Quantum chemical; Keto–enol tautomerism

4-Hydroxy-1,3-thiazoles 1, being ‘classical’ heterocycles, revealed unexpected physicochemical properties. The compounds show pH-sensible fluorescence, which can be employed for the generation of white emission light. NMR data and quantum chemical results provide a better insight into the keto-enol-tautomerism and the nature of the chromophoric system.