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Sulfonic Fries rearrangement

D. Arene Sulfonate-Arylsulfone (Sulfone-Fries) Rearrangement.171... [Pg.165]

Keywords aryl sulfonate, microwave irradiation, thia-Fries rearrangement, 2-ar-ylsulfonyl phenol... [Pg.378]

Olah, G. A., Arvanaghi, M., Krishnamurthy, V. V. Heterogeneous catalysis by solid superacids. 17. Polymeric perfluorinated resin sulfonic acid (Nafion-H) catalyzed Fries rearrangement of aryl esters. J. Org. Chem. 1983,48, 3359-3360. [Pg.591]

Friedel-Crafts reactions, 20, i, 29 Fries rearrangement, 21, 23 Froth dissipation, 20, 3 Fusiaryl chloride, 20, 29, 51 z-Furanacrylic acid, 20, 55 Furfural, 20, 35 Fdrylacrylic acid, 20, 55 Fusion, alkaline, of an aryl sulfonate, 21,... [Pg.59]

Kobayashi, S., Moriwaki, M., and Hachiya, I. 1995. The catalytic Fries rearrangement of acyloxy naphthalenes using scandium trifluoromethane-sulfonate as catalyst. /. Chem, Soc., Chem. Commun. 1527-1528. [Pg.189]

Sulfones from sulfonic acid esters Photo-Fries rearrangement OSO2R C SOjR... [Pg.417]

Other, nonclassical. Fries rearrangements have seen a thia-altemative that combines the rearrangement of aryl sulfonates (158 159), in solvent-free conditions under microwave activation, using an AlClj-ZnCl mixture supported on silica gel (Figure 18.10) [78]. [Pg.505]

Thia-Fries rearrangement of aryl sulfonates under microwave irridiation... [Pg.506]

More than half a century ago, Anderson and Reese reported the first example of a photo-Fries rearrangement (PFR), where 2-hydroxyphenylacetate was converted into 2,3- and 3,4-dihydroxy acetophenone upon UV irradiation [1]. Since then, hundreds of articles have appeared on this reaction, which has been extended from the initial aryl esters to amides, carbonates, carbamates, thioesters, sulfonates, etc. [2-4]. [Pg.889]

Preparation by Fries rearrangement of m-cresyl benzoate with trifluoromethane-sulfonic acid in a sealed tnbe at 170° for 24 h (49%) [37],... [Pg.76]

Preparation by Fries rearrangement of bis (4-hydroxy-phenyl)sulfonedi-(2,4-dichloro-benzoate) with a mixture of fluoroalcane-sulfonic acid and alcanesulfonic add [1441],... [Pg.557]

Also obtained by Fries rearrangement of 4,4 -diacetoxydiphenyl sulfone with alumininm chloride (5 equiv.) at 150-160° for 5 h (30%) [5915]. [Pg.1624]

See other pages where Sulfonic Fries rearrangement is mentioned: [Pg.294]    [Pg.138]    [Pg.656]    [Pg.56]    [Pg.218]    [Pg.353]    [Pg.138]    [Pg.294]    [Pg.656]    [Pg.196]    [Pg.353]    [Pg.138]    [Pg.365]    [Pg.656]    [Pg.370]    [Pg.335]    [Pg.656]    [Pg.1109]    [Pg.276]    [Pg.122]    [Pg.1144]    [Pg.1144]    [Pg.2201]    [Pg.180]    [Pg.506]    [Pg.180]    [Pg.543]   
See also in sourсe #XX -- [ Pg.215 ]



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