Secondary oxidants ferric nitrate

Several compounds of tungsten, which is a transition metal closely related to molybdenum, are able to catalyze the selective oxidation of secondary alcohols with hydrogen peroxide as secondary oxidant. These include tris(cetylpyridinium) 12-tungstophosphate,33 peroxotungstopho-sphate (PCWP)34 and Na2W04 in the presence of a phase transfer catalyst.35 Tungstophosphoric acid is able to catalyze the selective oxidation of secondary alcohols in the presence of ferric nitrate as secondary oxidant.36... [Pg.346]

Other transition metal compounds able to catalyze the selective oxidation of secondary alcohols include VO(acac)2 with t-BuOOH as secondary oxidant,40 a polystyrene-supported (catecholato)oxorhenium complex in the presence of DMSO 41 and a mixture of ferric nitrate and ferric bromate that catalyzes the oxidation of secondary alcohols with air.42... [Pg.347]

Potassium ferrate, K2Fe04, which is prepared from ferric nitrate and alkaline hypochlorites [916], is a selective oxidant for the conversion of primary alcohols into aldehydes (not acids), of secondary alcohols into ketones, and of primary amines into aldehydes [917, 918]. [Pg.37]

Rapid oxidation of secondary alcohols may be carried out using hydrated copper permanganate in dichloromethane. Water is an essential component in the reaction. Mixtures of potassium permanganate and copper sulphate may also be used, as may a variety of hydrated metal salts, although in these cases experimental details and yields were not reported. Bispyridinesilver permanganate has been shown to be an efficient reagent, soluble in organic solvents, for the oxidation of benzylic primary amines and alcohols to benzaldehydes. The intermediacy of nitrite esters is implicated in oxidations of alcohols with ferric nitrate on KIO bentonite. ... [Pg.49]