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A reaction involving a single substance but producing two products; for example, two molecules of acetaldehyde may react, producing an oxidation product (acetic acid) and a reduction product (ethyl alcohol).
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However, this model does not include the disproportionation reactions because these reactions are very fast in comparison with cyclization and can form a quasi-equilibrium condition for the concentration of the linear dextrins, which will be transformed into CDs by the reactions considered in the model.
The conversion of toluene increased with decreasing the amount of toluene in the feed, from toluene: methanol molar ratio of 8:1 to 1:2, and benzene (from disproportionation of toluene and/or toluene dealkylation) decreased from 7.
65) Disruption of the acid disproportionation of nitrite to nitric oxide through PPI use may also affect the NO biology of bone metabolism.
The hydrides on the surface were used to reduce the carbon-carbon double bonds on fatty acids of the triacylglicerols (TG), giving partially or fully saturated products as well as compounds obtained by the disproportionation of limonene (see Fig.
All the measurements were carried out at pH = 12, lower values were avoided to avoid the possible disproportionation reaction of Mn(V) and Mn(VI) [5,9] and higher pH was avoided to slowdown the reaction rate.
It is very likely that some of the therapeutic effects of the aurothiolates in RA are due to the colloidal metallic gold generated from disproportionation, and the side effects are caused by the trivalent cathionic gold formed from this disproportionation and the aurothiolates themselves (Figure 1).
2 shows the more common disproportionation reaction leading to [S.
In this method, single wall carbon nanotubes are grown by CO disproportionation (decomposition into C and carbon dioxide) at 700-950 in flow of pure CO at a total pressure that typically ranges from 1 to 10 atm.
Radical disproportionation Involves collision of the radicals resulting in the abstraction of an atom, usually hydrogen, by one radical from the other.
This allows them to undergo an interesting chemical reaction called disproportionation in which part of the molecule becomes oxidized and part of the molecule becomes reduced.
However, most of the mercury was likely derived from primary cinnabar by subsequent disproportionation or oxidation.
1), which catalyzes the disproportionation of two superoxides to molecular oxygen and hydrogen peroxide; and ascorbate peroxidase (APX; EC 1.