16195-35-0

Upstream product

• 148-24-3 8-quinolinol 
• 17333-85-6 4-chlorophenyldiazonium salt 
• 106-47-8 4-chloro-aniline 

Downstream Products

• 129890-99-9 (butyl xanthato){5-(p-chlorophenylazo)-8-hydroxyquinolato}nickel(II) 
• 129915-13-5 (dimethyldithiophosphato)(5-(p-chlorophenylazo)-8-hydroxyquinolinato)nickel(II) 
• 129890-94-4 (dicyclohexyldithiophosphato)(5-(p-chlorophenylazo)-8-hydroxyquinolinato)nickel(II) 

Relevant academic research and scientific papers

Synthesis and investigation of dyeing properties of 8-hydroxyquinoline-based azo dyes

A facile and well-known synthetic strategy has been used to prepare two novel 8-hydroxyquinoline-based azo dyes to apply as a disperse dye to polyester fabric. In this method, 8-hydroxyquinoline possessing a “privileged structure” which is made up of two rings, a phenol ring fused with pyridine ring, has been coupled with diazonium salt obtained from 2-amino-6-nitrotoluene (Dye-I) and with the diazonium salt obtained from 4-chloro-aniline (Dye-II). The structure of the dyes has been confirmed using nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy, and elemental analysis. As-synthesized dyes are used as disperse to polyester fabric, and the dyed samples were characterized for color fastness to washing, light, rubbing, and perspiration. The fastness testing results indicate that the dyes have a good affinity to PET fabric as the dyed PET fabrics have moderate to excellent fastness to washing and light and very good fastness to rubbing and perspiration. The dyeing property of 8-hydroxyquinoline-based dyes is very promising and can be considered as the potential candidate to meet the actual demand of PET fabric dyeing in the textile industry.

Synthesis, characterization, antibacterial, antifungal and antimalarial study of mixed ligand metal complexes derived from azo quinoline with thiosemicarbazone

Mixed ligand metal complexes of azo quinoline and thiosemicarbazone with Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) metal ions were synthesized. The structure and possible geometry of all the metal(II) complexes were analyzed and supported by IR, m

Synthesis of mordant azo dyes using supported Diazonium ions and br?nsted acidic ionic liquids

Diazonium ions supported on Amberlite IR120 (Na+) have been prepared and used for the synthesis of a variety of 5-arylazo-8-hydroxyquinoline in solid state as well as in pyridinium based ionic liquids under microwave heating. The two methods have been compared with respect to ease of recovery, yield, reaction time and environmental impact.

Pyridine aided progression from amorphous to crystalline bis([5-(aryl)-1-diazenyl]quinolin-8-olato)zinc(II) compounds???Solution and solid-state structural characterization, nanoparticle formation and antibacterial activity

Ten new zinc(II) compounds, viz. [Zn(LQ)2(4-MePy)2]·H2O (1), [Zn(LMeAQ)2(Py)2]·C6H6 (2a), [Zn(LMeAQ)2(H2O)2] (2b

Photo-physical and structural studies of some synthesized arylazoquinoline dyes

This study presents the spectral and structure characteristics of seven azoquinoline dyes with different substituents and their new methylated counterparts for the first time, where some compounds are newly synthesized. The solvatochromic, tautomeric, hal

Thermal properties, geometrical structures, antimicrobial activity and DNA binding of supramolecular azo dye complexes

Ru(III) complexes of 5-(4-derivative phenyl azo)-8-hydroxyquinoline (HLn) are prepared and characterized by elemental analyses, IR, UV-Visible spectra, 1H and 13C NMR spectra, mass spectra, X-ray diffraction analysis, conductivity measurements and magnetic susceptibility measurements as well as thermal analysis. The XRD patterns show that the ligand (HL3) has a polycrystalline nature and complex (2) is completely amorphous. The ligands act as a monobasic bidentate coordinating through CN and OH groups by replacement of a proton from the latter group. The molar conductivities show that the Ru(III) complexes are non-electrolyte in nature. The spectra show that all complexes are octahedral in which two chlorides are attached to the metal ion. The optimized bond lengths, bond angles and the calculated quantum chemical parameters for the ligands (HLn) and Ru(III) complexes are investigated. Molecular docking was used to predict the binding between azo dye ligands and the receptor of prostate cancer mutant 2q7k-hormone. The activation thermodynamic parameters, such as activation energy (Ea), enthalpy (ΔH?), entropy (Δ?) and Gibbs free energy change of the decomposition (ΔG?) are calculated using Coats-Redfern and Horowitz-Metzger methods. The ligands (HLn) and Ru(III) complexes are screened for their antimicrobial activity against bacterial and fungal species. The tested complexes (1) and (2) have good antibacterial activity against Bacillus cereus and the tested ligands (HL2, HL3 and HL5) have good antifungal activity against Aspergillus Niger and also HL5 showed against Alternaria alternata. The catalytic oxidation of cyclohexanol by [Ru(Ln)(AsPh3)2Cl2]·xH2O with periodic acid as co-oxidant is described. The Ru(III) complexes exhibited a catalytic activity for the oxidation of cyclohexanol to cyclohexanon.

Molecular docking, potentiometric and thermodynamic studies of some azo quinoline compounds

The ligands of 5-(4-derivative phenyl azo)-8-hydroxyquinoline and its derivatives (HLn) were synthesized from the coupling of the quinoline with diazonium salt derived from aniline and its p-derivatives and characterized by different spectrosco

Geometrical structures, thermal, optical and electrical properties of azo quinoline derivatives

Azo quinoline derivatives (AQx) were synthesized by coupling of 8-hydroxyquinoline with aniline derivatives. The optimized bond lengths, bond angles and the quantum chemical parameters for the ligands (AQx) were calculated. The dielectric constants (εr and εi) and ac conductivity (σac) were studied as a function of both temperature and frequency in the temperature range 293-509 K and frequency range 102-105 Hz. The thermal activation energies ΔE1 and ΔE2 were calculated and found to be in the range of 0.03-0.26 and 0.2-1.31 eV, respectively, depending on the substituent and frequency. The conduction mechanism was investigated for all the derivatives under investigation. The ligands (AQ1, AQ2 and AQ4) were found to be controlled by correlated barrier hopping model and the ligands (AQ3 and AQ5) were controlled by small polaron tunneling mechanism. The optical absorption properties of the ligands thin films were investigated. The absorption coefficient (α) spectra reveals two absorption peaks which are assigned as π-π? and n-π? transitions. The optical energy gap (Eg) was investigated near the absorption edge and found to be in the range of 1.34-2.26 and 1.47-1.69 eV for direct and indirect optical transitions, respectively.

Azo-8-hydroxyquinoline dyes: The synthesis, characterizations and determination of tautomeric properties of some new phenyl- and heteroarylazo-8-hydroxyquinolines

Two series of new heterocyclic and carbocyclic disperse azo dyes based on 8-hydroxyquinoline were prepared and characterized by FT-IR, 1H NMR, mass spectroscopic techniques and elemental analysis. Their solvatochromic properties in different solvents were investigated and their absorption spectra were strongly solvent dependent. The acid and base effects on this equilibrium were also examined. In addition, the colors of dyes were discussed with respect to the nature of the carbocyclic and heterocyclic rings and substituent therein. To determine the tautomeric forms of the prepared dyes in solid state, X-ray data for 5-(5-methylthiazol-2-yldiazenyl)-8-hydroxyquinoline were recorded. The X-ray results showed that the dye exists as an azo tautomer in the solid state.