123692-94-4

Upstream product

• 90-02-8 salicylaldehyde 
• 106-40-1 4-bromo-aniline 
• 2028-85-5 (4-bromophenyl)diazonium chloride 
• 127125-47-7 C₆H₄BrClN₂ 

Downstream Products

• 1296195-23-7 C₁₄H₁₁BrN₄O₂ 
• 1402168-11-9 1,2-bis(4-((4-bromophenyl)diazenyl)-2-((2-(methylthio)phenylimino)methyl)phenol)methylenbenzene 
• 1402835-56-6 C₁₆H₁₃BrN₆OS 
• 1548514-12-0 6-((4-bromophenyl)diazenyl)-2-oxo-2H-chromene-3-carbonitrile 

Relevant academic research and scientific papers

Three indole derived azo-azomethine dyes as effective chemosensors for F-ion and trace water detection

Three new dyes 13 derived from indol-carbohydrazide and azo-azomethine for the optical detection of F- ion have been developed. Dye 1 was found to be an effective colorimetric sensor for F- ion response with over 250 nm red-shift. Moreover, the resultant dye...HF2- complex (dye-F) could be successfully used as a secondary sensor for analyzing trace water in aprotic organic solvents especially in acetonitrile with a low limit of detection. In addition to detection of low-level water content in solution, test paper incorporated with 1-F complex or 2-F complex was well developed for naked-eye detection of water content in four organic solvents as mentioned above. Importantly, the test paper prepared by introducing 1-F complex or 2-F complex could be developed to prepare an ink-free rewritable paper by using water as the sole trigger. Furthermore, the same test paper could still work for many cycles without obvious loss in color quality.

Solvatochromic and electrochemical properties of new thermally stable azo-azomethine dyes with N2S2O2 donor set of atoms

A new series of azo-azomethine dyes with N2S2O 2 donor set of atoms have been synthesized via condensation reaction of α,α'-bis(2-aminoethylthio)-1,3-xylene and substituted azo-coupled salicylaldehyde. The dyes were characterized by IR, UV-Vis and 1H NMR spectroscopic methods as well as elemental analysis. The solvatochromic behavior of the dyes was probed by studying their UV-Vis spectra in four pure organic solvents of different polarities and a meaningful correlation was observed. The electrochemical properties of the dyes have been also studied by cyclic voltammetry in DMSO. Moreover, thermal properties of the prepared dyes were examined by thermogravimetric analysis and results indicated that the framework of the dyes is stable up to 260 °C.

Facile and Mild Synthesis and Characterization of Some New Diazo Dyes on the Basis of Schiff Bases in the Presence of Nanocrystalline Magnesium Oxide as a Base Catalyst under Solvent-free Conditions

In this research, some new diazo dyes including Schiff base have been synthesized by the condensation reaction between ethylenediamine and derivatives of salicylaldehyde containing diazo functional groups in the presence of nanocrystalline magnesium oxide

Synthesis and antiviral evaluation of 5-(arylazo)salicylaldehyde thiosemicarbazone derivatives as potent anti-bovine viral diarrhea virus agents

Thiosemicarbazones which previously characterized as a new class that inhibit anti-bovine viral diarrhea virus (BVDV) prompted us for synthesizing a series of new thiosemicarbazone derivatives. Thus, in this study, we reported the synthesis and antiviral evaluation of a series of 5-(arylazo)salicylaldehyde thiosemicarbazone derivatives for their expected antiviral activity. The desired products were synthesized from the condensation of 5-(arylazo)salicylaldehyde derivatives with N-(4)-substituted thiosemicarbazide derivatives. Antiviral screening was performed to test the anti-bovine viral diarrhea virus properties. From the obtained results, compounds 5, 23 and 24 showed highly selective activity against BVDV by blocking the viral RNA synthesis in cell culture. The BVDV in antiviral drug studies is valuable surrogate for the hepatitis C virus (HCV); so, the above results provided a novel candidate for the development of anti-HCV agents.

Synthesis, spectroscopic investigation, anti-bacterial and antioxidant activites of some new azo-benzofuran derivatives

This Article deals with the stepwise synthesis and spectroscopic characterization of some new azo benzofuran derivatives, started from the diazotization of substituted aniline coupled with 2-hydroxy benzaldehyde. On reacting of the azo of 2-hydroxy benzal

New 1,2,4-triazole-based azo-azomethine dyes. Part II: Synthesis, characterization, electrochemical properties and computational studies

A new series of monoiminated 1,2,4-triazole-based azo-azomethine dyes have been synthesized via condensation reaction of 4-amino-3-methyl-5-mercapto-1,2,4- triazole with various substituted azo-coupled salicylaldehyde. The dyes have been characterized by using FT-IR, UV-Vis and 1H NMR spectroscopic methods as well as elemental analysis. The electrochemical behavior of the dyes has been investigated by cyclic voltammetry in DMSO at five different scan rates. Solvatochromic behavior of the dyes has been also investigated in four organic solvents with different polarities. Furthermore, the 1H chemical shielding of the dyes were studied by the gauge independent atomic orbital (GIAO) method at the level of density functional theory (DFT).

Thermally stable water insoluble azo-azomethine dyes: Synthesis, characterization and solvatochromic properties

Six new water insoluble azo-azomethine dyes have been synthesized via condensation reaction of α,α′-bis(o-aminophenylthio)-1,2- xylene with substituted azo-coupled salicylaldehyde. The condensation reaction provides the expected bis-iminated azo-azomethin

Mono and binuclear Ag(I), Cu(II), Zn(II) and Hg(II) complexes of a new azo-azomethine as ligand: Synthesis, potentiometric, spectral and thermal studies

New azo-azomethine dyes were prepared by reaction of p-aminobenzoic acid, o-anisidine, o-nitroaniline, and p-bromoaniline with salicylaldehyde respectively to form azo compounds and then condensation by urea to form 4-(R-arylazo 2-salicylaldene)-urea azo-azomethine derivatives (Ia-d). The complexes of these ligands with Ag(I), Cu(II), Zn(II) and Hg(II) metal ions were prepared. The structure of the free ligands and their complexes were characterized by using elemental analysis (C, H, N), 1H NMR, IR and UV-Vis-spectra. The proton dissociation constants of the ligands and the stability constant of their complexes have been determined potentiometrically in 40% (v/v) alcohol-water medium as well as the stoichiometry of complexes were determined conductometrically. The data reveal that the stoichiometries for all complexes were prepared in molar ratios (1:1) and (1:2) (M:L). The electrolytic and nonelectrolytic natures of the complexes were assigned based on molar conductance measurements. The thermogravimetric (TG), and differential thermal analyses (DTA) were studied in nitrogen atmosphere with heating rate 10 °C/min. The kinetic and thermodynamic parameters for thermal decomposition of complexes have been calculated by graphical method using Coats-Redfern (CR) method.