Potassium Permanganate Oxidizers

Potassium permanganate oxidizes succinic acid to a mixture of malic and tartaric acid [133-37-9]. 3-Hydroxypropionic acid [503-66-2] is obtained with sodium perchlorate. Cerium(IV) sulfate in sulfuric acid medium oxidizes succinic acid to oxaloacetic acid (71). [Pg.535]

Potassium permanganate oxidation of a vinyl group to a carboxyl group can be used to prepare fluormated carboxyhc acids with aliphatic [3/ ] (equanon 30) or alicychc 39] (equation 31) skeletons... [Pg.331]

Acetamiprid and its metabolites. A GC method has been developed for the determination of acetamiprid and its metabolites IM-2-1, IM-0, IC-0 (Figure 4) and IM-O-glucose in crops. As shown in Figure 5, acetamiprid and its metabolites in crops are extracted with methanol and derivatized to methyl 6-chloronicotinate (IC-O-Me) through alkaline hydrolysis, potassium permanganate oxidation and then esterification... [Pg.1136]

Potassium permanganate oxidizes both adlumidiceine (103) and ad-lumiceine (105) to the corresponding diketo acids bicucullinine (108) and bicucullinidine(llO), respectively (/13). Air oxidation of N-methylhydrasteine (104) leads to the expected N-methyloxohydrasteine (109) as well (J). Another way of transforming the keto acids (e.g., 104) to diketo acids (e.g., 109) utilizes the isonitroso derivatives (e.g., 133), which on hydrolysis gives the diketone (102). [Pg.270]

Erythrocyte suspension Sample purged absorption of hydrogen cyanide in sodium hydroxide conversion of thiocyanate to cyanide by potassium permanganate oxidation Spectrophotometry (thiocyanate- cyanide determination) No data 93-97 McMillan and Svoboda 1982... [Pg.195]

Anilines are converted into nitrosoarenes ArNO by the action of hydrogen peroxide in the presence of [Mo(0)(02)2(H20) (HMPA)]224, whereas catalysis of the reaction by titanium silicate and zeolites results in the formation of azoxybenzenes ArN (0)=NAr225. Azo compounds ArN=NAr are formed in 42-99% yields by the phase-transfer assisted potassium permanganate oxidation of primary aromatic amines in aqueous benzene containing a little tetrabutylammonium bromide226. The reaction of arylamines with chromyl chloride gives solid adducts which, on hydrolysis, yield mixtures of azo compounds, p-benzoquinone and p-benzoquinone anils 234227. [Pg.578]

Reacts with sodium and potassium permanganates (oxidizing agents) yielding carbon dioxide, water, and chloride ions. Incompatible with other strong oxidizing agents (e.g., ozone), aluminum and its alloys. [Pg.435]

Figure 10-32 shows one common reagent mixture (the Jones reagent — Cr03/H2S0yacetone). Another common procedure is a two-step reaction where basic potassium permanganate oxidizes the aldehyde to a carboxylate ion and the second step involves the acidification of the product to form the carboxylic acid. [Pg.157]

Strong oxidants such a hot basic potassium permanganate oxidize a ketone with an alteration of the carbon backbone. Figure 10-34 illustrates the oxidation of a ketone with permanganate followed by acidification to produce a carboxylic acid. The oxidation cleaves the carbon-carbon on one side of the carbonyl group. [Pg.158]

Potassium permanganate oxidizes oxalic acid evolving carbon dioxide. This reaction is often used to standardize KMn04 solutions. A molecular equation is ... [Pg.770]

Treatment of carbazole with potassium permanganate in acetone (or nickel peroxide in ether ) gave mainly 9,9 -bicarbazole 9 (23%) together with the trimer 10 (8%). In the potassium permanganate oxidation,... [Pg.87]

Overoxidation with permanganate is always a problem, but the relative reaction rates are very much a function of the pH of the reaction mixture and, in basic solution, potassium permanganate oxidizes unsaturated groups more rapidly than it oxidizes alcohols ... [Pg.643]

L. P. de St. Gilles, and I. M. Kolthoff, found that potassium permanganate oxidizes hypophosphorous acid completely to phosphoric acid. L. Amat found that the oxidation proceeds more quickly the more cone, the soln., the more acidic the soln., and the higher the temp. at ordinary temp., and in dil. soln., the oxidation is incomplete. If the soln. be too hot, some permanganate may be decomposed without interaction with the hypophosphorous acid. The reaction was studied by I. M. Kolthoff. M. Major, and A. Sieverts found that reduced iron readily dissolves in a hot soln. of sodium hypophosphite ferric salts are reduced to the ferrous state and ferric alum reacts at the temp, of the water-bath, while phosphorous acid is not attacked after several hours. [Pg.877]

Oxidation with Potassium Permanganate.—Oxidation with potassium permanganate of 2- and 3-desoxyhexose monomethyl ethers, obtained from the cardiac glycosides or by synthesis, has been employed extensively by Reichstein and his colleagues, since valuable information on the structures of the sugars is thereby provided. This reaction results in the formation from either a 2-desoxyhexose 3-methyl ether or a 3-desoxyhexose 2-methyl ether, of one of the isomers of methoxysuccinic acid, which is usually isolated as the diamide. [Pg.100]

Predict the product expected from potassium permanganate oxidation of a methylated pyridine. [Pg.251]

Gokel, G.W., Gerdes, H.M., and Dishong, D.M., Sulfur heterocycles. 3. Heterogenous, phase-transfer, and acid catalyzed potassium permanganate oxidation of sulfides to sulfones and a survey of their carbon-13 nuclear magnetic resonance spectra, J. Org. Chem., 45, 3634, 1980. [Pg.429]

Gray et al. (G3) have identified the products of alkaline potassium permanganate oxidation of bilirubin by chromatographic comparison with authentic compounds. The only compound obtained was 4-methyl-3-carboxyethylpyrrole-2,5-dicarboxylic acid, and they have therefore concluded that bilirubin is a lactam compound and in common with other bile pigments has a IXa structure (Fig. 2). [Pg.272]

In the case of 2,3-disubstituted dihydrobenzo-TAs, oxidation by potassium permanganate results in a mixture of sulfoxides and sulfones (69USP3455915). Only sulfones were obtained by potassium permanganate oxidation (63JOC2160 70JHC1007). [Pg.174]

The trithiapentalene system is not attacked as easily as free thione groups, as is shown in the potassium permanganate oxidation in the following reaction (Eq. 33).35... [Pg.195]

From Stemmadenia donnell-smithii, besides iboga alkaloids and voac-amine, the indole (+ )-quebrachamine (L), mp 147°—149°, [a]D +111° (CHCI3), and the indole stemmadenine (LIV, a— x or a— y bond), mp 199°-200° (dec.), [ ]D + 324° (pyridine), were isolated (11). The latter alkaloid also occurs in Diplorrhynchus condylocarpon (43) along with condylocarpine, shown (43a), to be LV (rather than LVI), and into which it was converted by potassium permanganate oxidation (44). Stem-... [Pg.224]

The A-methyl was fixed on the indoline nitrogen since potassium permanganate oxidation of ajmaline in acetone gave A-methylisat inacetone (34), and soda lime or zinc dust distillation afforded A-methylharman (I). [Pg.789]

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