Oxyacid Derivatives

Aritomi, Y. Kawasaki, and R. Okawara, Inorg. Nuclear Chem. Letters, 1972, 8, 1053. 

Methyl fluorosulphonate reacts with tetramethyltin, forming trimethyltin fluorosulphate. Two general synthetic routes to methyltin chlorofluoro-sulphates and trifluoromethanesulphonates of the general type Me SnCl -(S03X)4 , (n, m = 0, 1, or 2 X = F or CF3) have been described solvolysis of the corresponding methyltin chlorides in the appropriate 

Germanium dioxide aquate and alkali-metal nitrates react with iodic acid to yield alkali-metal hexaiodatogermanates(iv), M2[Ge(I03)6] (M = NH4, K, Rb, or Cs). The compounds M EM CIOa) ] (M = NH4, K, Rb, or Cs  

Prasad and J. P. Tandon, Synth. Inorg. Metal-Org. Chem., 1973, 3, 157. 

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Phosphorus compounds, 19 19-73 bond properties of, 19 26 chemical properties of, 19 20-31 chiral-centered, 19 25-26 economic aspects of, 19 67-69 as flame retardants, 19 51 inorganic, 11 487-488 oxidation states, coordination numbers, and geometries of, 19 20-26 as oxyacid derivatives, 19 20 reactive organic, 11 496 497 titanium in, 25 56-57 triply connected, 19 25 U.S. prices of, 19 68t U.S. production of, 19 67t... 

To keep this review to a reasonable length we had to limit our discussions to reactions of only sulfur oxyacids and their anhydrides. While we have introduced, where pertinent to the topic under discussion, results from a number of studies involving other derivatives of oxyacids of sulfur, there has been extensive work on mechanism and reactivity in reactions of some sulfur oxyacid derivatives that we have not been able to include, but of which we feel the reader should at least be aware. We will therefore indicate briefly what some of these areas are and given some leading references, so that persons wishing to do so may explore these topics on their own. 

Enzymatic polymerizations of oxyacid derivatives have been reported however, in most cases, only low molecular weight polyesters (molecular weight less or about 1 x 103) were formed.147 In the PPL-catalyzed polymerization of 12-hydroxydodecanoic... 

TABLE 11-12. TYPE STRUCTURES FOR PHOSPHORUS OXYACID DERIVATIVES... 

Oxyacid Derivatives. Both Mironov and Tarbell have investigated the synthesis of silyl carbonates. The routes shown in Scheme 23 gave high yields of the desired products. 

The preparation of oxyacid derivatives of Ge(IV) is facilitated by the presence of alkyl and aryl groups linked to Ge, so that formates, acetates, chloroacetates, perfiuoroacetates,... 

Fnedhclm Aubke and Darryl D DesMarteau, Halogen Derivatives of Group VIA Oxyacids... 

Historical Introduction and Perchlorates in General History. The early history of perchlorates and the perchlorate mdustryhas been thoroughly discussed (Refs 12 14, p 2), so it will be only briefly reviewed here. Early exptl work on chlorates and perchlorates was closely tied to the discovery and identification of Cl. Several workers, notably Priestly, Lavoisier, and Scheele reported the isolation of volat liqs and gases which probably were oxides or oxyacids of Cl, but they failed to identify and characterize the compds isolated. Scheele, for example, treated muriatic ac (HCl) with Mn dioxide and obtained a volat liq which he called muriatic ac derived of its phlogiston (Ref 14, p3). The first perchlorate definitely identified was the K salt which was prepd by Stadion in 1816 by the thermal decompn of K chlorate (Ref 2). From this he prepd a hydrate of perchloric ac by heating the K salt with sulfuric ac (Ref 3). Pure (anhyd) perchloric ac was first prepd by Roscoe in 1862 by distn of the hydrated ac (Ref 4)... 

In vitro synthesis of polyesters using isolated enzymes as catalyst via non-biosynthetic pathways is reviewed. In most cases, lipase was used as catalyst and various monomer combinations, typically oxyacids or their esters, dicarboxylic acids or their derivatives/glycols, and lactones, afforded the polyesters. The enzymatic polymerization often proceeded under mild reaction conditions in comparison with chemical processes. By utilizing characteristic properties of lipases, regio- and enantioselective polymerizations proceeded to give functional polymers, most of which are difficult to synthesize by conventional methodologies. 

Hata, T. and Sekine, M., Silyl- and stannyl-esters of phosphorus oxyacids — intermediates for the synthesis of phosphate derivatives of biological interest, in Phosphorus Chemistry Directed Toward Biology, Stec, W.J., Ed., Pergamon, New York, 1980, p. 197. 

Atherton, F. R. (1949). Some aspects of the organic chemistry of derivatives of phosphorus oxyacids. Quart. Rev. Chem. Soc. Ill, 146. 

Halogen Derivatives of Croup VI A Oxyacids Aubke, F, DesMarteau, D D... 

The literature on metal complexes of carbohydrates through 1965 has been fully reviewed by Rendleman (I), and we shall therefore only discuss recent work. We shall not discuss the complexes formed with strong bases, such as calcium and barium oxide these are salts in which the sugar acts as a weak acid, losing one or several protons. Nor shall we discuss the complexes formed with anions of oxyacids—e.g., borate, stannate, periodate, etc. ions all these are compounds formed by covalent bonds in alkaline solution. We are concerned only with complexes formed with cations in neutral aqueous solution there is no evidence for the formation of complexes between sugars and simple anions in neutral aqueous solution. (For an example of complex formation between a sugar derivative and chloride ion in chloroform solution, see Reference 3.)... 

Hydroxy(alkoxy)phosphonium Ions. Olah and McFarland560 studied the protonation in HS03F or HS03F-SbF5 solution of varied phosphorus oxyacids and derivatives. Treatment of tetravalent phosphoms compounds (phosphorus, phosphonic, and phosphinic acid and their trialkyl and triaryl derivatives) results in (9-protonation and the formation of hydroxyphosphonium ions. Trivalent phosphites, in turn, are protonated at the phosphorus atom. The 31P shifts observed for the latter ions are significantly deshielded, which was attributed to significant oxonium ion character. 

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