Reaction with arsenic oxide

Chloromethylpyridine is converted to 2-picolylarsonic acid in quantitative yield by Meyer reaction with arsenic(m) oxide in an aqueous sodium hydroxide solution <2002PS2773>. 

Bulk aluminum may undergo the following dangerous interactions exothermic reaction with butanol, methanol, 2-propanol, or other alcohols, sodium hydroxide to release explosive hydrogen gas. Reaction with diborane forms pyrophoric product. Ignition on contact with niobium oxide + sulfur. Explosive reaction with molten metal oxides, oxosalts (nitrates, sulfates), sulfides, and sodium carbonate. Reaction with arsenic trioxide + sodium arsenate + sodium hydroxide produces the toxic arsine gas. Violent reaction with chlorine trifluoride, Incandescent reaction with formic acid. Potentially violent alloy formation with palladium, platinum at mp of Al, 600°C. Vigorous dissolution reaction in... 

The results of simultaneous weighted least-squares regression of the data and some of the unfitted but derived quantities are shown in Tables la, lb, and 2. Table la displays elemental arsenic, its simple oxides, and the reactions for arsenic oxidizing to arsenic trioxides. Table lb introduces the hydrolysis species for As(III) and As(V) in solution, the hydrolysis reactions, and the solubility reactions for the simple oxides. Single species are shown at the top of each table with the reactions underneath. The following discussion describes some of the mineral occurrences for these substances, describes their relative stabilities from field observations, and considers the implications of the evaluated thermodynamic data in terms of these occurrences. 

Oxidation Reactions with Arsenic Pentafluoride. Arsenic penta-fluoride (Ozark Mahoning Company) is handled on a calibrated Pyrex vacuum line equipped with a mercury manometer. The vacuum line is thoroughly flamed out under vacuum before use. The joints on... 

The iodide-catalysed reaction with arsenic(m) has been studied in sulphuric acid and the oxidation of antimony(m) in perchlorate medium. In the latter investigation, the reaction... 

However, Kamai and co-workers, who have done a great deal of work in this area, have found the reaction of this type can be complicated by incompleteness and undesired side reactions 336). They prefer to obtain their products, especially alkoxides, by treating alcohols with arsenic oxides, usually in the presence of a dehydrating agent such as calcium carbide or anhydrous copper sulfate 336, 337). 

From the reaction with arsenic trichloride it appears that the cyclopenta-dienyl group is more readily displaced from the metal than the 7r-allylic system. In contrast, however, oxidation in the presence of hydrogen chloride of 7r-CsHsMo(CO)2(iT-C3H5) affords the dioxochloro complex tr-CjHs M0O2CI (14). Thus, in this case it is the ir-allyl group which has been displaced from the metal. From these results and comments, therefore, it seems that the stability and reactivity of 7r-allyl complexes varies widely from metal to metal, and also depends on the nature of the other ligands attached to the metal. 

Trimethylarsine gives a 98% yield of trimethylarsine difluoride when treated with xenon difluoride [102] in fluorotrichloromelhane. and tnsfpentafluorophen-yl)arsine gives a 94% yield of tris(pentafluornphenyl)arsme difluoride after reaction with dilute fluorine in fluorotnchloromethane at 0 C [106] Other trivalent arsenic compounds have also been fluorinated with xenon difluoride [103] In addition, arsines have been oxidatively fluorinated by iodine pentafluoride [107] or electrochemically in 26-34% yield [108]... 

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