Oxidation peroxidation

Magnesium Air, beryllium fluoride, ethylene oxide, halogens, halocarbons, HI, metal cyanides, metal oxides, metal oxosalts, methanol, oxidants, peroxides, sulfur, tellurium... 

Organomineral hydroperoxides have been prepared from hydrogen peroxide and organomineral haUdes, hydroxides, oxides, peroxides, and amines (10,33). If HX is an acid, ammonia is used to prevent acidic decomposition. 

Sulfur/accelerator Resin Sulfur/accelerator Resin Amine Zinc oxide Peroxide... 

Similar hydroxylation-oxidations can be carried out using a catalytic amount of osmium tetroxide with A-methylmorpholine oxide-hydrogen peroxide or phenyliodosoacetate." A recent patent describes the use of triethylamine oxide peroxide and osmium tetroxide for the same sequence. Since these reactions are of great importance for the preparation of the di-hydroxyacetone side-chain of corticoids, they will be discussed in a later section. 

Heating with the following solids, their fusions, or vapours (a) oxides, peroxides, hydroxides, nitrates, nitrites, sulphides, cyanides, hexacyano-ferrate(III), and hexacyanoferrate(II) of the alkali and alkaline-earth metals (except oxides and hydroxides of calcium and strontium) (b) molten lead, silver, copper, zinc, bismuth, tin, or gold, or mixtures which form these metals upon reduction (c) phosphorus, arsenic, antimony, or silicon, or mixtures which form these elements upon reduction, particularly phosphates, arsenates,... 

See other gas evolution incidents See other oxidants, peroxides... 

When the oxygen compounds of group IA and IIA metals react with water, strongly basic solutions are produced regardless of whether an oxide, peroxide, or superoxide is involved. 

The practical significance of the reaction depicted in Scheme 7.43 consists of the development of novel antioxidants carrying chalcogen atoms. Divalent organochalcogen compounds react readily with many types of oxidants (peroxide, peroxyl radicals, peroxynitrite, singlet oxygen, and ozone). The tetravalent organylchalcogenides formed are reduced by many mild reductants. Therefore, compounds of this sort have the potential to act as catalytic antioxidants. 

How can the oxides, peroxides, and hydroxides of the alkaline-earth metals be prepared What are the commercial names of calcium and barium hydroxide solutions How do the solubility, basic properties, and thermal stability of the hydroxides change in the series calcium-strontium-barium ... 

Neutral Oxides—Peroxides—Action of Nitric Acid on Metals on Oxidisable Substances —Complexity of Oxides—Spinels and Similar Compounds. 

In many of these reactions a lattice constituent — oxygen or hydrogen — is brought into reacting molecules and the lattice defect is subsequently removed by a reaction with another reaction component, or by a reaction with another reactive centre of the same molecule. This is the so-called Mars and van Krevelen mechanism. With some oxides peroxide groups are formed on the surface (from adsorbed oxygen molecules). Radicals may form at high temperatures (1000 K). 

There are many endogenous substrates, of widely different chemical structure, that are metabolized through oxidative, peroxidative, and reductive changes introduced by P450 enzymes. These include saturated and unsaturated fatty acids, eicosanoids, sterols and steroids, bile acids, vitamin D derivatives, retinoids, and uroporphyrinogens (Tables 9.4 and 9.5). 

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