Tritylium cation catalyzed interrupted Povarov reactions afforded cis-4-aminobenzodihydropyrans in excellent yields (90%) within 10 min by lowcatalystloading (1 mol %). Lewis acidic catalysis mechanism by carbocation was proposed and validated. Switching a one-pot batch version of the reaction into a two-stage convergent continuous flow procedures received 10-fold time reduction to 1 min with 88%