ChemInform Abstract: Reaction of o-Benzoquinone Dioxime with a Arenediazonium Salt.

ChemInform ◽  
2010 ◽  
Vol 28 (8) ◽  
pp. no-no
Author(s):  
L. N. CHURKINA ◽  
E. YU. BELYAEV
Keyword(s):  
Arenediazonium Salt

Oxidation mechanism of carcinogenic bis-azo dyestuff Trypan Blue

1982 ◽  
Vol 47 (10) ◽  
pp. 2746-2748 ◽  
Author(s):  
Miroslav Matrka ◽  
Jana Pípalová
Keyword(s):  
Acid Medium ◽  
Quantitative Evaluation ◽  
Oxidation Product ◽  
Trypan Blue ◽  
Oxidation Mechanism ◽  
Azo Coupling ◽  
Arenediazonium Salt

Oxidation of Trypan Blue with cerium(IV) ion in acid medium gives arenediazonium cation similar to the oxidation product of N,N-dimethyl-4-aminoazobenzene. Quantitative evaluation of the arenediazonium salt formed has been carried out spectrophotometrically after previous C-azo coupling with 2-naphthol.

Copper catalyzed synthesis of unsymmetrical diaryl sulfones from an arenediazonium salt and sodium p-toluenesulfinate

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62926-62930 ◽  
Author(s):  
Sitaram Haribhau Gund ◽  
Radheshyam Suresh Shelkar ◽  
Jayashree Milind Nagarkar
Keyword(s):  
Homogeneous System ◽  
System P ◽  
Arenediazonium Salt ◽  
Arenediazonium Salts

Aryl sulfones have been synthesized by the reaction of sodium p-toluenesulfinate and arenediazonium salts using a CuI catalyzed homogeneous system.

Desulfinylative Pd-catalyzed coupling reaction of arenediazonium salt with aryl sulfinates to give unsymmetrical biaryls

2017 ◽  
Vol 58 (30) ◽  
pp. 2936-2939 ◽  
Author(s):  
Sitaram Haribhau Gund ◽  
Kishor Eknath Balsane ◽  
Jayashree Milind Nagarkar
Keyword(s):  
Coupling Reaction ◽  
Arenediazonium Salt

Dediazoniation of arenediazonium salt with trivalent phosphorus compounds by one-electron transfer mechanism

1991 ◽  
Vol 32 (40) ◽  
pp. 5601-5604 ◽  
Author(s):  
Shinro Yasui ◽  
Masayuki Fujii ◽  
Chihiro Kawano ◽  
Yukihiro Nishimura ◽  
Atsuyoshi Ohno
Keyword(s):  
Electron Transfer ◽  
Transfer Mechanism ◽  
Phosphorus Compounds ◽  
Trivalent Phosphorus ◽  
Electron Transfer Mechanism ◽  
Arenediazonium Salt

scholarly journals Synthesis, properties and color assessment of some new 5-(3- and 4-substituted phenylazo)-4,6-dimethyl-3-cyano-2-pyridones

2006 ◽  
Vol 71 (5) ◽  
pp. 435-444 ◽  
Author(s):  
Dusan Mijin ◽  
Gordana Uscumlic ◽  
Nada Perisic-Janjic ◽  
Ivan Trkulja ◽  
Maja Radetic ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Melting Point ◽  
1H Nmr ◽  
Azo Dyes ◽  
Polyester Fabrics ◽  
Isolation Techniques ◽  
Synthetic Procedure ◽  
Synthesis Properties ◽  
Arenediazonium Salt ◽  
Hplc Analyses

A series of 5-(3- and 4-substituted phenylazo)-4,6-dimethyl-3-cyano-2-pyridones were synthesized, starting from acetylacetone and arenediazonium salt, followed by condensation with cyanoacetamide using a modified literature procedure. The experimental investigation included modification of the synthetic procedure in terms of solvent, temperature, isolation techniques as well as purification and identification of the products. The azo dyes were characterized by melting point, IR, UV/Vis, 1H NMR and MS data. HPLC analyses were also performed. The 2-hydroxypyridine/ 2-pyridone tautomeric equilibration was found to depend on the polarity of the applied solvents. A color assessment of the solid dyes and dyed polyester fabrics was also performed and the correlation between the colour and the structure of the dyes is discussed.

scholarly journals Facile Synthesis and Antimicrobial Evaluation of Some New Heterocyclic Compounds Incorporating a Biologically Active Sulfamoyl Moiety

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Elham S. Darwish
Keyword(s):  
Heterocyclic Compounds ◽  
Antimicrobial Agents ◽  
Aromatic Aldehydes ◽  
Biologically Active ◽  
Phenyl Isothiocyanate ◽  
Convenient Synthesis ◽  
Triazine Derivatives ◽  
Antimicrobial Evaluation ◽  
Arenediazonium Salt

A facile and convenient synthesis of new heterocyclic compounds containing a sulfamoyl moiety suitable for use as antimicrobial agents was reported. The precursor 3-oxo-3-phenyl-N-(4-sulfamoylphenyl)propionamide was coupled smoothly with arenediazonium salt producing hydrazones which reacted with malononitrile or triethylorthoformate affording pyridazine and triazine derivatives, respectively. Also, the reactivity of the same precursor with DMF-DMA was followed by aminotriazole; aromatic aldehydes was followed by hydrazine hydrate, triethylorthoformate, or thiourea affording triazolo[1,5-a]pyrimidine, pyrazole, acrylamide, and dihydropyrimidine derivatives, respectively. On the other hand, treatment of the precursor propionamide with phenyl isothiocyanate and KOH in DMF afforded the intermediate salt which was treated with dilute HCl followed by 2-bromo-1-phenylethanone affording carboxamide derivative. While the same intermediate salt reactedin situwith chloroacetone, ethyl 2-chloroacetate, 3-(2-bromoacetyl)-2H-chromen-2-one, methyl iodide, or 2-oxo-N-phenylpropane hydrazonoyl chloride afforded the thiophene, keteneN,S-acetal, and thiadiazole derivatives, respectively. The structure of the new products was established based on elemental and spectral analysis. Antimicrobial evaluation of some selected examples from the synthesized products was carried out whereby four compounds were found to have moderate activities and one compound showed the highest activity.

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