Mn(iii)-Catalyzed cascade cyclization reaction ofo-acyl aromatic isocyanides with boronic acids

A Mn( iii )-catalyzed cascade cyclization of o -acyl aromatic isocyanides with boronic acids was examined to give a series of 3-hydroxyindolenines in single-step. This cascade process involved a transmetalation/nucleophilic addition/intramolecular cyclization sequence.