derivatives were prepared by copper-catalyzedcross-coupling of hydroxamates with aryliodides. The reaction conditions are compatible with standard hydroxy-protecting groups on the hydroxylamine moiety and are applicable to a broad range of coupling partners. N-Aryl-O-alkylhydroxamic acid derivatives were prepared by copper-catalyzedcross-coupling of hydroxamates with aryliodides. The reaction conditions
The first example of copper-catalyzed intramolecular N-arylation of hydroxamic acid derivatives is presented. Based on this transformation a new method for the synthesis of N-alkoxyindol-2-ones from 2-(2-bromoaryl)acetylhydroxamates has been developed. The reaction conditions tolerate standard hydroxyl protecting groups on the hydroxylamine moiety and are also applicable for the synthesis of six-membered N-alkoxybenzolactams.