Abstract
Diazotization of 4,6-disubstituted -2- amino benzothiazol with mixture of sodium nitrite and 50% sulphuric acid solution at (0-5)C gave 4,6-disubstituted-2-benzothiazoldiazonium sulphate, upon coupling with 2-hydroxy-4-substituted -5-benzoic acid gave 2-hydroxy-4-substituted 3 (4,6-disubstituted-benzothiazolyl )azo benzoic acid derivatives which charactarized by their melting points, elemental analysis, FT-IR, UV-visible, and H-NMR spectra structure formula of the prepared compounds were confirmed depending on identification results. Acidity constants were detrmined for both carboxylic and phenolic protons.
Article Type
Article
How to Cite this Article
Ati, Mahmod M.; Hussene, Sabri M.; and Hamady, Waleed F
(2006)
"Synthesis and characterization of 2-hydroxy-4-substituted-3(4,6-disubstituted benzothiazolyl-2- azo)-benzoic acid,"
Baghdad Science Journal: Vol. 3:
Iss.
1, Article 22.
DOI: https://doi.org/10.21123/bsj.2006.690
