Oxidations hydroxyl groups

Another fairly important stationary phase in straight phase PLC is aluminum oxide. Comparable with silica gel also in the case of aluminum oxides, hydroxyl groups at the surface of this adsorbent are responsible for the selective retention of sample molecules. The relevant physical parameters for the characterization of aluminum oxides suitable for straight phase PLC are the following ... 

During PP oxidation, hydroxyl groups are formed by the intramolecular isomerization of alkyl radicals. Since PP oxidizes through an intense intramolecular chain transfer, many of the alkyl radicals containing hydroperoxy groups in the 0-position to an available bond can undergo this reaction. An isomerization reaction has also been demonstrated for the liquid-phase oxidation of 2,4-dimethylpentane [89], Oxidation products contain, in addition to hydroperoxides, oxide or diol. 

Biodegradation of Polyvinyl-Type Poly(sodium carboxylate). PVA is the only substance which is known to be biodegradable in the class of polyvinyl-type synthetic polymer. It may be biodegraded by oxidizing hydroxyl group of PVA to the corresponding carbonyl group and subsequent hydrolysis as shown below (17, 18). 

Because of the mild reaction conditions and the reaction path, these oxidations are very selective and often are used to oxidize hydroxyl groups in molecules containing sensitive groups that would also react with the common oxidizing agents. 

Sodium periodate can be used to oxidize hydroxyl groups on adjacent carbon atoms, forming reactive aldehyde residues suitable for coupling with amine- or hydrazide-... 

Erythroxylum coca levo-dihydrox3q)henylalanine nuclear factor kappa B reactive oxygen species reactive nitrogen species Deoxyribonucleic acid nitric oxide hydroxyl group Mycobacterium tuberculosis... 

Oxidative Treatment with sodium hypochlorite in order to oxidize hydroxyl groups to carboxyl or carbonyl groups Reduces viscosity, gelling, and retrogradation, and yields clear pastes Food applications for high solids and lower viscosity used as additive for batters and breadings also used as sizings for paper, textiles, and adhesives ... 

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