Periodate Oxidation of Phenols. IV. Structure of the Periodate Oxidation Product of a Dimeric 3-Methoxy-o-quinone.
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Quantitative Determination of Dihydrostreptomycin by Periodate Oxidation.
Dihydrostreptomycin is produced commercially by the catalytic hydrogenation of streptomycin. The reaction involves the reduction of the aldehyde group in the streptose moiety of the streptomycin molecule to the corresponding primary carbinol group as evidenced by the failure of dihydrostreptomycin to react with carbonyl reagents or with alkali to produce maltol. As there are no chemical methods...
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Partial periodate oxidation of hyaluronan (HA) leads to ring opening of the 4-linked D-glucuronate (GlcA) residues, providing a particularly flexible element within otherwise semi-flexible chains. This leads to compaction of the chains as demonstrated by a pronounced decrease in the intrinsic persistence length, which was determined on the basis of the molecular weight dependence of radius of g...
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Some time ago Carter and Neville reported (1) that hydroxy-n-proline yields formaldehyde on oxidation with periodate. In another laboratory, this oxidation was found to produce a considerably lower yield of formaldehyde than we had obtained.’ A further study of this reaction was accordingly undertaken. Oxidation of several new samples of hydroxy-L-proline gave lower yields of formaldehyde than ...
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1. It is proposed that periodate oxidation of glycol groups in the repeating units of polysaccharide molecules can be used to probe differences in polymer shapes in solution. 2. Measurement of second-order rate constants (k2) of periodate-glycol reactions may be compared between polymers and relevant monomers, to assess perturbations due to polymer configuration. 3. Factors effecting the measur...
متن کاملPartial oxidation of light alkanes by periodate and chloride salts.
The efficient and selective partial oxidation of light alkanes using potassium periodate and potassium chloride is reported. Yields of methane functionalization in trifluoroacetic acid reach >40% with high selectivity for methyl trifluoroacetate. Periodate and chloride also functionalize ethane and propane in good yields (>20%).
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1960
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.14-0539