A BF<sub>3</sub>-Mediated Nitrogen-to-Carbon Rearrangement of N-Protected 2,3-Dihydro-3-hydroxy-1<i>H</i>-benzisoindol-1-ones, and Its Interception for a Facile Preparation of 3-Substituted Benzisoindolones
accompanied by recombination of the nitrogen-protecting unit to the 3-position of the ring system. The addition of sulfur or carbon nucleophiles affords products of preferential capture of the rearrangement intermediate offering a convenient and rapid synthetic route to N-unprotected 2,3-dihydro-3-substituted-1H-benzisoindol-1-ones.