Palladium-Catalysed Intramolecular Direct Arylation of 2-Bromobenzenesulfonic Acid Derivatives
作者:Charles Beromeo Bheeter、Jitendra K. Bera、Henri Doucet
DOI:10.1002/adsc.201200793
日期:2012.12.14
arylation of 2-bromobenzenesulfonic acid derivatives was found to proceed using 1 mol% of palladiumacetate as the catalyst. The influence of the substituents on the phenol moiety of 2-bromobenzenesulfonic acid phenyl esters reveals that electron-donating substituents favour the reaction while electron-withdrawing ones are unfavourable. The reactivity of sulfonamides was also studied and, in all cases