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Methanesulfomc acid

Sulfonic acids such as methanesulfomc acid and p toluenesulfomc acid are strong acids comparable m acidity with sulfuric acid... [Pg.351]

In contrast to phosphorus esters, sulfur esters are usually cleaved at the carbon-oxygen bond with carbon-fluorine bond formation Cleavage of esters of methanesulfomc acid, p-toluenesulfonic acid, and especially trifluoromethane-sulfonic acid (triflic acid) by fluoride ion is the most widely used method for the conversion of hydroxy compounds to fluoro derivatives Potassium fluoride, triethylamine trihydrofluoride, and tetrabutylammonium fluoride are common sources of the fluoride ion For the cleavage of a variety of alkyl mesylates and tosylates with potassium fluoride, polyethylene glycol 400 is a solvent of choice, the yields are limited by solvolysis of the leaving group by the solvent, but this phenomenon is controlled by bulky substituents, either in the sulfonic acid part or in the alcohol part of the ester [42] (equation 29)... [Pg.211]

See other pages where Methanesulfomc acid is mentioned: [Pg.351]    [Pg.147]    [Pg.248]    [Pg.556]    [Pg.612]    [Pg.669]    [Pg.891]    [Pg.993]    [Pg.1084]    [Pg.147]    [Pg.248]    [Pg.556]    [Pg.612]    [Pg.669]    [Pg.891]    [Pg.351]    [Pg.147]    [Pg.248]    [Pg.556]    [Pg.612]    [Pg.669]    [Pg.891]    [Pg.993]    [Pg.1084]    [Pg.147]    [Pg.248]    [Pg.556]    [Pg.612]    [Pg.669]    [Pg.891]   
See also in sourсe #XX -- [ Pg.30 , Pg.58 ]



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