Oxidation of tris

Prior equilibria. The oxidation of tris-( 1, lO-phenanthroline)iron(II) ion by permanganate ion is characterized by this rate law 18... 

The rate of oxidation of tris(2,2 -bipyridine)osmium(II) by octacyanomo-lybdate(V)... 

Oxidation of tri(thioacetone) by cone, nitric acid is explosively violent. 

Triphenylcarbinol has been obtained by the reaction between phenylmagnesium bromide and benzophenone,1 methyl benzoate, or phosgene 8 by action of phenylsodium upon benzophenone, benzoyl chloride, ethyl chlorocarbonate, or ethyl benzoate 4 by hydrolysis of triphenylchloromethane 5 and by oxidation of tri-phenylmethane.6... 

Similar effects occur for electron transfer between cations, the reactions being catalyzed by anions. We have investigated the oxidation of tris(4,7-dimethylbipyridyl)-... 

Fig. 9.5 Simultaneously measured CV curve (a), absorption potential curve (b), and its derivative with respect to scan potential (c), for the cyclic linear sweep oxidation of tri-p-anisylamine at a vapor-deposited platinum OTE in 0.1 M Et4NCI04-AN [8].

In Fig. 9.5, curve (a) is the cyclic voltammogram (CV) for the oxidation of tri-p-anisylamine (TAA) in 0.1 M Et4NCl04-AN, and curves (b) and (c) are the absorbance-potential curve and its derivative curve, respectively. They were obtained using an OTE with a vapor-deposited platinum film [8]. The excellent agreement of curves (a) and (c) shows that the reaction in the CV is purely the oxidation and re-reduction of the TAA. However, the two curves are different in that the peak current for curve (a) is proportional to the square root of the voltage sweep rate, while the peak height of curve (c) is inversely proportional to the square root of the voltage sweep rate. 

Bis(fluoroalkyl) and tris(lluoroalkyl) phosphites arc oxidized to the corresponding phosphates using a mixture of oxygen with nitrogen dioxide.277,278 In the oxidation of tris(2,2,3.3-tetrafluoropropyl) phosphite (5) by oxygen, bromal exhibits a strong catalytic effect, while chloral is less effective.278... 

In other studies [34,186], the treatment of trichloroethylene and tetrachloroethylene with UV/H202 system is reported. For example, Beltran et al. [34] determined the rate constants of the reactions between hydroxyl radical and TCE and TCA with this oxidizing system at high concentration of hydrogen peroxide. Hirvonen et al. [186] observed the formation of chloroacetic acids during the hydrogen peroxide photo-assisted oxidation of tri- and tetrachloroethylene. These authors [186] report that formation of chloroacetic acids diminishes when hydrogen peroxide is simultaneously applied to UV radiation compared to UV radiation alone. 

Sunder M, Hempel DC. Oxidation of tri- and perchloroethene in aqueous solution with ozone and hydrogen peroxide in a tube reactor. Water Res 1997 31 33 40. 

Tetrakis(2,4-pentanedionato) cerium (IV) has been prepared by air oxidation of tris(2,4-pentanedionato)cerium(III) in hot benzene solution1 and by the reaction of hydrous cerium(IV) oxide with excess 2,4-pentanedione (acetylacetone) in water. The procedures presented here are based on the former approach. 

Similarly, molybdenum and vanadium complexes catalyze the oxidation of tri-phenylphosphine by tert-butyl hydroperoxide.481... 

Boron is determined by oxidation of tri(sec-butyl)borane to 2-butanol.911,12 A 4.0-mL aliquot of the potassium tri(sec-butyl)hydro-borate(l — ) solution is hydrolyzed by adding it, with stirring, to a mixture of... 

Hydroxamic acids (4, 202). This oxidant is preferred for oxidation of tri-methylsilylated amides to hydroxamic acids. Although the yields on oxidation of silylated secondary aliphatic amides with 1 are usually only moderate (15-40%), hydroxylation of acetanilides proceeds consistently in yields of 40-50%. The reaction is efficient for oxidation of benzoxazinones, for example, 2->3. The products are useful herbicides because of inhibition of auxin. 

Fig. 10.7 Oxidation of tris(t-butylphenyl)phosphite to tris(t-butylphenyl)phosphate.

Figure 8 Correlation between ionic potential and equiadsorption points (EAP) of amphoteric hydrous oxides of tri- and quadrivalent metals. Values of r are taken from Ref 115, EAP data from Ref 111. (From M. Abe, in Inorganic Ion Exchange Materials (A. Clearfield, ed.), CRC Press, Chap. 6, 1982. With permission.)...

Participation of two phenyl rings in the formation of a cyclopropane intermediate (80) was proposed for the anodic oxidation of tri- and diarylmethanes as shown below. 

Oxidation of tri-terr-butylcyclobutadiene(tricarbonyl)iron complex with ammonium ce-rium(IV) nitrate or iron(III) nitrate in acetone did not afford the expected dimer of ix i-tert-butylcyclobutadiene, but gave exclusively l,2-di-ter/-butyl-3-(2,2-dimethyl)propanoylcyclo-propene (4), in quantitative yield. ... 

In the presence of OSO4 and KC103or NaClO, mono- or disubstituted alkenes are effectively oxidized to the corresponding 1,2-dioIs. However, these catalytic systems are inactive for the oxidation of tri- or tetrasubstituted alkenes. and Os04- BuOOH is widely used for this purpose (eq (76)) [223]. 

Air oxidation of a variety of aliphatic and alkyl aromatic compounda air oxidation of p-nitrotoluene sulfuric acid substitution chlorination of a variety of organic compounds reaction between isobutylene and acetic acid oxidation of ethylene to acetaldehyde (Wacker processes) hydrochlorination of olehns absorption of phosphine in an aqueous soluhon of formaldehyde and hydrochloric acid acehc acid from the carbonylation of methanol oxidation of tri-alkyl phosphine dimerization of olefins. 

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