The atomic arrangement -C(OH)=C(OH)- produced by proton migration from the CH of a -CHOH group that is attached to a -CO- group to the oxygen of the -CO- group (usually induced by alkali), giving rise to doubly bonded carbon atoms (the -ene group), each bearing a -CHOH group (a diol); a special case of enolization.
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Thus, enediol 77 will be converted to dicarbonyl 78, while dismutation of the superoxide anions will produce [H.
3]-ITO slides photocurrents were measured in a three-electrode photoelectrochemical cell under irradiation with a Xenon lamp before and after modification with enediol ligands baring different pendant chemical groups.
It has been reported in the literature that in alkaline medium sugar will form enediol with the hydroxyl group and also that the rate of enolization is the same as the rate of oxidation [14] However, in the present study, the double reciprocal plots of the pseudo-first-order rate constants against the sugar concentrations were linear (fig.
El mecanismo basico consiste en la transformacion del grupo carbonilo libre (oxidable por oxigeno y otros oxidantes) en enediol por accion del calor y la solucion alcalina [2,3,].
The absorbance spectra of the TiO2/ITO slides are measured before and after deposition, annealing and surface modification with enediol ligands.
The FC method suffers from a number of interfering substances particularly sugars, aromatic amines, sulfur dioxide, ascorbic acid and other enediols and reductones, organic acids, and Fe (II), and correction for interfering substances should be made.
Regarding influences that involve sugar chemistry, oxygenated free radicals which resulted in early glycation stages have been proven to be contributors to glycoxidative damage: glycolaldehyde that results in the initial stages of nonenzymatic glycosylation is noncyclizable and may undergo tautomerization, yielding enediols that are easily subject to autooxidation.