Synthese von 2,3‐unsubstituierten, <i>N</i>‐acylierten Indolen durch sigmatrope[3,3]‐Umlagerung von <i>O</i>‐Vinyl‐<i>N</i>‐phenylhydroxylaminderivaten

Abstract

Abstract 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 Li 2 PdCl 4 affords 2,3‐unsubstituted N ‐acylindoles via hetero‐ Cope ‐rearrangement of the intermediate N ‐ O ‐vinylhydroxylamine derivatives.