Oxidation strong oxidizing reagents

Lcad(rV) trifluoroacetate is a strong electrophilic and oxidizing reagent It IS a valuable reagent for the hydroxylatton of aromatic compounds [5S, 59] Lead(IV) trifluoroacetate also reacts with silylated benzenes with the exclusive formation of the corresponding trifluoroacetate esters [59] (equation 28)... 

Chloramine-T, or N-chlorotoluenesulfonamide, has been one of the most popular oxidizing reagents used for radioiodination techniques since its introduction by Greenwood et al. in 1963 (Sigma). It has strong oxidizing properties that readily lead to the formation of the required... 

Radicals derived from hydrofluorocarbons (HFCs) as well as hydrofluo-roethers (HFE) are often destabilized with respect to the methyl radical [51, 57,68,70,79-82], The low stability of these radicals implies that the C-H bonds in the corresponding closed shell parent compounds are comparatively strong and thus rather unreactive towards attack of oxidizing reagents. This latter property is of outstanding importance for the use of these compounds in a variety of technical applications, in which thermally stable, non-oxidizable, non-flammable compounds are needed. However, with respect to the environmental fate of these compounds high C-H bond energies... 

Reactions with Strong Oxidizing Reagents and Acids... 

Caro s acid is used in the preparation of dyes and bleaching agents. It also is used as a strong oxidizing reagent to convert ketones to lactones, to convert olefins to glycols and esters, and to analyse pyridine, aniline and many alkaloids. 

Ceric ammonium nitrate is used as a volumetric oxidizing reagent in many oxidation-reduction titrations. Cerium(IV) ion is a strong oxidant simdar to permanganate ion. It is the most widely-used primary standard among all Ce(IV) compounds. Other apphcations of this compound are in organic oxidation reactions and as a catalyst in polymerization of olefins. 

Three equivalents of FeCl3 are required for the reaction of chalcone 41 j with ethyl cyanoacetate to give a-pyridone derivative 72 (Scheme 8.32) [100]. The reaction is carried out at 140 °C under strongly acidic conditions (FeCl3 dissolved in propionic acid). It proceeds presumably by an initial Michael addition yielding intermediate 73. Excess of iron(III) is required, because this is the oxidizing reagent for the introduction of the second C—C double bond in intermediate 74. 

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