Synthese von 2,3-unsubstituierten,N-acylierten Indolen durch sigmatrope[3,3]-Umlagerung von O-Vinyl-N-phenylhydroxylaminderivaten

Synthesis of 2,3-Unsubstituted N-Acylindoles by 3,3]-Rearrangement of the N-Phenyl-O-vinylhydroxylamine Derivatives Summary, Treatment of N-phenylhydroxamic acids with vinylacetate in the presence of Li₂PdCl₄ affords 2,3-unsubstituted N-acylindoles via hetero-Cope-rearrangement of the intermediate N-O-vinylhydroxylamine derivatives.