Oxidation nitrogen dioxide

Nitrogen dioxide oxidizes an aqueous solution of iodide to iodine, hydrogen sulfide to sulfur, and carbon monoxide to carbon dioxide. In such reaction, it is reduced to nitric oxide, rather than nitrogen ... 

For example, tyrosine residues on proteins are readily nitrated by a free radical mechanism (Prutz et al., 1985), where one nitrogen dioxide oxidizes the tyrosine to a phenyl radical that reacts with a second nitrogen dioxide to give nitroty-... 

Benzophenone cyanohydrin has been synthesized previously by the nitrogen dioxide oxidation of 1,2-dicyanotetraphenylethane.2... 

Form Supplied in red solid prepared from optically pure d-camphor oxime in a five-step sequence (eq 1) reduction with sodium in n-amyl alcohol followed by fractional recrystallization of the resulting hydrochloride salts of bornylamines gives the endo-isomer in enantiomerically pure form treatment with phosgene and direct condensation of the isocyanate with (ethoxycarbonyl)hydrazine gives a compound which cyclizes upon treatment with base subsequent nitrogen dioxide oxidation furnishes (-)-en[Pg.145]

Dimmel DR, Karim MR, Savidakis MC, Bozell JJ (1996) Pulping catalysts from lignin -5. Nitrogen dioxide oxidation of lignin models to benzoquinones. J Wood Chem Technol... 

Dimmel, D. R. Karim, M. R. Savidakis, M. C. Bozell, J. J. Pulping catalysts from hgnin (5). Nitrogen dioxide oxidation of lignin models to benzoquinone. J. Wood Chem. Techn. 1995,16,169-189. 

Today, oxidized cellulose materials are used in medical devices such as absorbable hemostatic agents and absorbable adhesion bamers. This chapter retiews the history of development, nitrogen dioxide oxidation, chemical characteristics, biodegradation, bioabsorption and applications of oxidized cellulose. 

Nitrogen dioxide oxidizes the primary hydroxyl groups of polysaccharides to uronic acids (161). Side reactions occur to an extent of 10 to 15%, presumably to produce carbonyl groups. These oxidized polysaccharides have some applications, based principally on their conversion to a soluble form by salt formation. 

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