In(OTf)3-catalyzed reorganization/cycloaddition of two imine units and subsequent modular assembly of acridinium photocatalysts

Herein, we disclose a novel reorganization/cycloaddition between two imine units catalyzed by In(OTf) 3 Lewis acid that differs from the well-known [4 + 2] cycloaddition version via the Povarov reaction.