Emine Bagdatli, N. Ocal
Sep 1, 2012
Citations
0
Influential Citations
16
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
This study is in continuation of our work related to 5-pyrazolones aimed at synthesizing new heterocycles with dyeing and anticipated biological properties. Compounds 1 and 2; 1-methyl- or 1-(2,4-dimethylphenyl)-3-phenyl-1H-pyrazol-5(4H)-one, 3; 1-methyl-5-oxo-3-phenyl-4,5-dihydro-1H-pyrazole-4-carbaldehyde and 4; 2-(1-methyl-5-oxo-3-phenyl-1H-pyrazol-4(5H)-ylidene)-3-phenylthiazolidin-5-one were prepared and subjected to diazotation with aromatic amines and diamines. New azo (1a–c, 2a, b, 3a, b, 4a, c) and bisazo dyes (2c, d, 4b) were obtained, and their structures were confirmed by spectroscopic and analytical methods. In addition, UV–vis measurements, dyeing performance, and fastness tests were carried out for all compounds.