Iv. the Diazo Reaction in Urine
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چکیده
منابع مشابه
An environmentally friendly approach to the synthesis of azo dyes based on 2-naphthol using kaolin-SO3H nanoparticles
Kaolin-SO3H nanoparticles were prepared via reaction of kaolin and chlorosulfonic acid and characterized by FT-IR, XRD, FESEM, TEM, XRF, EDS, BET and TGA. The activity of this green catalyst was probed by the synthesis of aryl diazonium salts as the starting reactant and then, their diazo coupling with 2-naphthol to form azo dyes in a solvent-free medium at room temperature...
متن کاملSynthesis of oxygen-containing heterocyclic compounds based on the intramolecular O–H insertion and Wolff rearrangement of a-diazocarbonyl compounds
The addition products of Ti(IV)-enolate derived from b-keto a-diazo carbonyl compound to ketones or a,b-unsaturated compounds were subjected to Rh2(OAc)4-catalyzed and photo-induced diazo decomposition. The Rh2(OAc)4-catalyzed reaction afforded intramolecular O–H insertion products, while the photo-induced reaction gave Wolff rearrangement/intramolecular nucleophilic addition products. The tran...
متن کاملAn Observation concerning the Bratton-marshall Diazo Reaction in Sulfonamide-free Urine.
I N 1939, Bi’atton and Marsimall (1) described a niethod for the quantitative ammalysis of sulfoimamides by coupling their diazonium salts with N-(1-naphthyl)-etimylenediamine to form an azo dye. Since then, the procedure has been used extensively for the determination of sulfonamide compounds jim blood ammd urine (2). Recently an occasion arose for the qualitative identification of sulfonamide...
متن کاملAn environmentally friendly approach to the synthesis of azo dyes based on 2-naphthol using kaolin-SO3H nanoparticles
Kaolin-SO3H nanoparticles were prepared via reaction of kaolin and chlorosulfonic acid and characterized by FT-IR, XRD, FESEM, TEM, XRF, EDS, BET and TGA. The activity of this green catalyst was probed by the synthesis of aryl diazonium salts as the starting reactant and then, their diazo coupling with 2-naphthol to form azo dyes in a solvent-free medium at room temperature...
متن کامل[Micelle-mediated extraction for concentrating conjugated bilirubin in urine].
An extraction method based on the phase separation of aqueous micellar solutions of n-octyl-beta-D-thioglucoside (OTG) was applied to the concentrating conjugated bilirubin in urine. The analyte in sample solutions could be efficiently concentrated into a small volume of surfactant-rich phase, while hydrophilic matrix components including urinary protein, ascorbic acid, and saccharide remained ...
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