5393-24-8Relevant articles and documents
Synthesis and characterization of new 4-hydroxy-1,3-thiazoles
Taeuscher, Eric,Weiss, Dieter,Beckert, Rainer,Goerls, Helmar
experimental part, p. 1603 - 1608 (2010/06/22)
A series of highly substituted 4-hydroxy-1,3-thiazoles was synthesised in two different ways. Whereas their anions display strong fluorescence in the bathochromic part of the visible spectrum, the emission is shifted hypsochromically upon alkylation reactions. This easy switch between the anion and its derivatives makes them suitable for widespread applications. The thiazoles possess prerequisites for the complexation of metals due to the coexistence of aza-heterocycles and of 1,3-diketone substructures. In addition, the hydroxy group allows further functionalisation reactions, as exemplified by the incorporation of an azide or an acetylene into the product, and by the synthesis of a star-shaped derivative. Georg Thieme Verlag Stuttgart.
Iron(II) and Nickel(II) Complexes of 2,6-Di(thiazol-2-yl)pyridine and Related Ligands
Baker, Anthony T.,Singh, Pratibha,Vignevich, Valentina
, p. 1041 - 1048 (2007/10/02)
2,6-Di(thiazol-2-yl)pyridine (1a), 2,6-di(4-methylthiazol-2-yl)pyridine (1b) and 2,6-di(2-imidazolin-2-yl)pyridine (3) have been prepared by the reaction of pyridine-2,6-dicarbothioamide with bromoacetaldehyde diethyl acetal, bromoacetone and ethylenediamine, severally.Bis(ligand) iron(II) and nickel(II) complexes of all ligands have been prepared.The bis(ligand) iron(II) complexes of (1a) and (3) are low-spin whereas that of (1b) is high-spin at room temperature and undergoes a thermally induced spin transition.The field strengths of the ligands, determined from the spectra of their nickel(II) complexes, correlate well with the observed magnetic behaviour of their iron(II) complexes.The field strengths of (1a) and (1b) are found to be marginally less than those of the isomeric ligands 2,6-di(thiazol-4-yl)pyridine (2a) and 2,6-di(2-methylthiazol-4-yl)pyridine (2b).
