2497-34-9

Upstream product

• 589-16-2 4-aminoethylbenzene 
• 108-95-2 phenol 
• 100-41-4 ethylbenzene 
• 71-43-2 benzene 
• 98-86-2 acetophenone 

Downstream Products

• 33227-96-2 p-Ethyl-p'-n-butyloxy-azobenzol 
• 33227-94-0 p-Ethyl-p'-methoxy-azobenzol 
• 50695-98-2 C₁₇H₂₀N₂O 
• 1306630-41-0 C₃₆H₂₉N₅O₆ 
• 162464-25-7 Br^(1-)*C₂₁H₃₀N₃O⁽¹⁺⁾ 
• 162464-26-8 4-ethylazobenzene-4'-(oxyhexyl)trimethyl ammonium bromide 
• 1268818-24-1 Br^(1-)*C₂₅H₃₈N₃O⁽¹⁺⁾ 
• 1268818-25-2 Br^(1-)*C₂₇H₄₂N₃O⁽¹⁺⁾ 

Relevant academic research and scientific papers

Nano-CuFe2O4-supported sulfonic acid as a novel and recyclable nanomagnetic acid for diazotization of aromatic amines: efficient synthesis of various azo dyes

Abstract: A novel heterogeneous sulfonic acid functionalized nanomagnetic CuFe2O4 was successfully prepared and characterized by analyzing different obtained data including Fourier transform infrared spectroscopy, X-ray powder diffraction, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, dynamic light scattering and vibrating sample magnetometer. Then the novel acidic reagent was examined in synthesis of various azo-containing compounds from coupling of aryl diazonium ferrite sulfate salts with aromatic and non-aromatic compounds. The procedure starts by diazotization of aromatic amines with NaNO2 and wet CuFe2O4–SO3H and then coupling reaction of aryl diazonium ferrite sulfate salts with appropriate reagent. The prepared nano-solid acid showed high activity in synthesis of variety of aryl diazonium salts. In addition the as-prepared aryl diazonium ferrite sulfate salts are stable at room temperature for many hours and reacted efficiently in coupling reactions of aryl diazonium salts. All the azo dyes are synthesized in high yields and simple reaction conditions at room temperature. Moreover, the nanomagnetic solid acid was easily recovered from the reaction mixture and reused five runs without significant loss of activity. Graphical Abstract: [Figure not available: see fulltext.]

Azobenzene derivative and liquid crystal composition containing the same

PROBLEM TO BE SOLVED: To provide a material that has excellent compatibility with other liquid crystal materials and nematic liquid crystallinity while achieving a high Δn and a liquid crystal composition comprising the material as a constituent member

Effect of chain length on the interaction between modified organic salts containing hydrocarbon chains and poly(N -isopropylacrylamide- co -acrylic acid) microgel particles

A series of four hydrophobically modified, diphenylazo-based organic salts have been prepared and characterized. To achieve this a Cx (x = 4, 6, 8, or 10) hydrocarbon chain was inserted between the diphenylazo moiety and the quaternary ammonium headgroup of the salt. The absorption of each of the four modified organic salts into anionic microgel particles of poly(N- isopropylacrylamide-co-acrylic acid) has been studied at pH 8. In addition, the hydrodynamic diameters and electrophoretic mobilities of the microgel particles have been studied as a function of the organic salt concentration, also at pH 8. In addition to the electrostatic attraction between the quaternary ammonium head groups of the organic salts and the anionic groups within the microgel particles, hydrophobic association between the chains of the organic salts within the microgel particles plays a role, with this effect increasing strongly from x = 4 to 10. Desorption of the x = 4 and 6 organic salts occurs readily on changing, in situ, the pH from 8 to 2.5 (and thereby eliminating the electrostatic interaction) but is only partially achieved for the x = 8 and 10 organic salts. Indeed, for the x = 10 organic salt, only about 80% of the organic salt is desorbed upon dilution of the microgel particles into a large excess of water.

Liquid-crystalline polymorphism of symmetrical azobananas: Bis(4-(4-alkylphenyl)azophenyl) 2-nitroisophtalates

In this paper we present a series of novel compounds, bis(4-(4-alkylphenyl) azophenyl) 2-nitroisophtalates, which exhibit nematic and banana-type liquidcrystalline phases. The alkyl chain length varies from 1 to 18 carbons. The first ten members of this series exhibit nematic phase. The last eleven compounds exhibit banana-type liquid crystalline phases. The propyl and pentyl derivatives have extra second type of banana mesophase. Copyright Taylor & Francis Group, LLC.

Liquid crystalline properties of 4-methyl-, 4-ethyl- and 4-propyl-4′-alkyloxyazobenzenes

Liquid crystalline properties of 4-methyl-4′-alkoxyazobenzenes (azo-1-n), 4-ethyl-4′-alkoxyazobenzenes (azo-2-n) and 4-propyl-4′-alkoxyazobanzenes (azo-3-n) are described. For these three homologous series, temperatures and enthalpies of phase transitions

Preparation and characterazation of chromophor group containing cyclotriphosphazenes: II azo chromophor carrying some cyclotriphosphazenes

Some new substituted cyclotriphosphazenes were prepared by the reaction of hexachlorocyclotriphosphazene and 4-hydroxyazo compounds such as 4-hydroxyazobenzene, 4′-ethyl-4-hydroxyazobenzene, 4′-tertbutyl-4-hydroxyazobenzene, 4′-methoxy-4-hydroxyazobenzene, 3′,4′-dichloro-4-hydroxyazobenzene, 2′-chloro-4-hydroxyazobenzene and 2′-methoxy-5′-chloro -4-hydroxyazobenzene. The structure of the compounds with the general formula [NP(OC6H4N=N-Ar)2]3. was determined by UV-VIS, IR, 1H-NMR and elemental analysis.