Results 21 to 30 of about 52,827 (291)

Preparation characterization and biological activity of some new tetra - azo compounds

open access: yesمجلة علوم ذي قار, 2019
In this paper , preparation and characterization of some tetra azo compounds .Azo coupling of 3`,3,4`,4- tetra amino biphenyl with phenol and some phenol derivatives in alkaline solution gave azo dyes. I.R and U.V.
ojs_admin, Maged Muzael
doaj   +4 more sources

Azo Compounds and their Potential Applications: Article Review

open access: yesAl-Kitab Journal for Pure Sciences
A review of the existing body of literature about azo compounds and their practical applications. Azo compounds, which include a (-N=N-) group, serve as the fundamental structure for several produced compounds in different fields of chemistry ...
Zainab Radhi Al-Majdi   +3 more
doaj   +1 more source

Synthesis and Structure-Activity Relationships of Pyridoxal-6-arylazo-5'-phosphate and Phosphonate Derivatives as P2 Receptor Antagonists. [PDF]

open access: yes, 1998
Novel analogs of the P2 receptor antagonist pyridoxal-5'-phosphate-6-phenylazo-2',4'-disulfonate (PPADS) were synthesized. Modifications were made through functional group substitution on the sulfophenyl ring and at the phosphate moiety through the ...
Boyer, José L.   +13 more
core   +3 more sources

Challenges of a feasible route towards sustainability in environmental protection [PDF]

open access: yes, 2010
Anaerobic processes for treatment of low and high strength wastewaters and solid wastes constitute the core method in the natural biological mineralization (NBM) treatment concept.
Lettinga, G.
core   +3 more sources

Epsilon-Near-Zero Al-Doped ZnO for Ultrafast Switching at Telecom Wavelengths: Outpacing the Traditional Amplitude-Bandwidth Trade-Off

open access: yes, 2015
Transparent conducting oxides have recently gained great attention as CMOS-compatible materials for applications in nanophotonics due to their low optical loss, metal-like behavior, versatile/tailorable optical properties, and established fabrication ...
Boltasseva, A.   +5 more
core   +1 more source

Preparation and characterization of bis-[1,3,5]triazinyl diazenes and their utilization as flame retardants in polypropylene films [PDF]

open access: yes, 2014
A series of bis-[1,3,5]triazinyl diazenes and two metal complexes thereof were synthesized and tested as new flame retardants in polypropylene films. It was observed that electron withdrawing triazinyl ring substituents (i.e.
Aelmans   +40 more
core   +1 more source

Synthesized azodyes of 2-amino-1, 3, 4- thiadiazole - 5 - thiol

open access: yesمجلة بغداد للعلوم, 2011
Several azo dyes were synthesized through coupling reaetion of some substituted phenols and B.naphthol with diazonium salt of 2- amino-1,3-4- thiadiazol -5- thiol. All the synthesized compounds during this work were characterized using some speetral data
Baghdad Science Journal
doaj   +1 more source

Synthesis, characterization, biological studies, molecular docking and theoretical calculation of some transition metal complexes with new azo dye 2-[2′-(6-methoxybenzothiazolyl)azo]-3-methyl-4-nitrophenol

open access: yesResults in Chemistry, 2022
Ag(I), Pt(IV), and Au(III) metal complexes of novel ligand 2-[2′-(6-methoxybenzothiazolyl)azo]-3-methyl-4-nitro phenol (6-MBTAMN) have been synthesized and characterized by 1H NMR, 13C NMR, FT-IR, UV–vis, Mass spectra, CHNS, atomic absorption ...
Khalid J. Al-Adilee   +2 more
doaj   +1 more source

azo compounds [PDF]

open access: yes, 2014
Citation: 'azo compounds' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00560 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire   +1 more source

Synthesis, characterization, and dye performance investigations of azo-coumarin bearing chalcone moieties

open access: yesZanco Journal of Pure and Applied Sciences, 2023
The preparation of several azo dyes(2a-h) involved the reaction of 4-aminoacetophenone with sodium nitrite to produce the corresponding diazonium salts, which were then permitted to react with 4-Hydroxycoumarin to produce the relevant azo dye (A).
Dler Dlshad Kurda
doaj   +1 more source

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