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Photo-Fries sulfonates

Aryl sulfonates RS03Ar (R = C6H5, CH3) were found to undergo photochemical rearrangement upon irradiation with uv-light.8,9 In the case of phenyl p-toluenesulfonate (20), products originating from the photo-Fries reaction were identified as 2-hydroxy-4 -methyldiphenyl sulfone (21), 4-hydroxy-4 -methyldiphenyl sulfone (22), and phenol (23). [Pg.140]

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

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]

See other pages where Photo-Fries sulfonates is mentioned: [Pg.138]    [Pg.656]    [Pg.138]    [Pg.656]    [Pg.462]    [Pg.138]    [Pg.365]    [Pg.656]    [Pg.370]    [Pg.335]    [Pg.656]    [Pg.1109]    [Pg.276]    [Pg.122]    [Pg.1144]    [Pg.2201]    [Pg.543]    [Pg.818]    [Pg.821]    [Pg.827]    [Pg.370]   
See also in sourсe #XX -- [ Pg.88 ]



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