75007-33-9Relevant articles and documents
Co(ii), Ni(ii) and Cu(ii) complexes with phenylthiazole and thiosemicarbazone-derived ligands: Synthesis, structure and cytotoxic effects
Sobiesiak, Marta,Muziol, Tadeusz,Rozalski, Marek,Krajewska, Urszula,Budzisz, Elzbieta
, p. 5349 - 5361 (2014/12/11)
Complexes of Co(ii), Ni(ii) and Cu(ii) with 2-(3,5-dimethyl-1H-pyrazole-1-yl)-4-phenyl-1,3-thiazole (a) and 3,5-dimethyl-1H-pyrazole-1-carbothioamide (b) ligands were synthesized. The crystal and molecular structures of four of them were determined by the X-ray diffraction method. In the complexes with ligand a the metal atom was bound via two nitrogen atoms, whereas ligand b interacted through the nitrogen and sulfur atoms. Comparing the coordination modes observed for both studied ligands, the thiocarbamoyl sulfur atom can participate in metal binding and in bridge formation, whereas the thiazole (aromatic) sulfur atom is not involved in the coordination. This effect seems to enhance (at least partially) conformational flexibility. Hydrogen bonds played a principal role in the crystal network formation of the analyzed compounds. The cytotoxic activity of the complexes against HL-60 and NALM-6 leukemia cells and the WM-115 melanoma cell line was also measured. The copper(ii) complex with the thiosemicarbazone ligand (7b) exhibited relatively high cytotoxicity towards all tested tumor cells. The cytotoxicity of copper(ii) complexes 7b and 9b against the melanoma WM-115 cells was over three times higher than that of cisplatin. This journal is
Sodium carbonate-mediated facile synthesis of 4-substituted-2-(3,5- dimethylpyrazol-1-yl)thiazoles under solvent-free conditions
Aggarwal, Ranjana,Kumar, Sunil,Singh, Shiv P.
, p. 521 - 525,5 (2020/09/16)
An efficient and facile synthesis of 4-substituted-2-(3,5-dimethylpyrazol- 1-yl)thiazoles 3 was achieved by grinding an equimolar mixture of -haloketones 2 with 3,5-dimethylpyrazol-1-thiocarboxamide 1 in the presence of sodium carbonate under the solvent-
β,β-Dibromoketones: A superior alternative to β-bromoketones in hantzsch thiazole synthesis
Prakash, Richa,Kumar, Ajay,Aggarwal, Ranjana,Prakash, Om,Singh
, p. 2501 - 2505 (2008/02/10)
β,β-Dibromoketones (2) have been found to be a superior alternative to the conventionally used β-bromoketones (1) for performing the Hantzsch thiazole synthesis.1 These crystalline, nonlachrymatory compounds are more reactive than 1 as demonstrated by the