Synthesis and characterization of an organic reagent 4-(6-bromo-2-benzothiazolylazo) pyrogallol and its analytical application.
Organic reagent, 4-(6-Bromo-2-Benzothiazolylazo) pyrogallol (4-Br-BTAP), was synthesized by coupling reaction of diazotized 2-amino-6-bromobenzothiazole with pyrogallol and purified using ethanol recrystallization method. Analysis and characterization of synthesized product were carried out using melting point, elementary analysis, IR and H¹-NMR. Dissociation constants of the organic reagent were calculated by spectrophotometric method. Absorption spectra of the 4-Br-BTAP in solvents of different polarities were investigated. Analytical application of 4-Br-BTAP was established with Cu (II) and Pd (II).
Department of Chemistry, College of Science, University of Kufa, Najaf Governorate, Iraq. nasser_an77@yahoo.com
N A
NA
Naser
K H
KH
Kahdim
D N
DN
Taha
D001391:Azo Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents / Q000138:chemical synthesis / Q000737:chemistry; D007477:Ions; D007700:Kinetics; D008670:Metals / Q000032:analysis; D011748:Pyrogallol / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
C578341:4-(6-bromo-2-benzothiazolylazo)pyrogallol; D001391:Azo Compounds; D007202:Indicators and Reagents; D007477:Ions; D008670:Metals; D012997:Solvents; D011748:Pyrogallol