Solvent-controlled 4CzBnBN-catalyzed intramolecular photocyclization and dehydrogenative photocyclization of indole carboxamides for the switchable synthesis of indoloquinolones and dihydroindoloquinolones

We have developed a solvent-controlled, 4CzBnBN-catalyzed switchable photocyclization and dehydrogenative photocyclization of heterocyclic anilides for the rapid and divergent synthesis of indoloquinolinones and cis -dihydroindoloquinolinones.