Two different cascadecyclization processes were developed using aryl group-substituted propargyl alcohol derivatives with a p-hydroxybenzylamine unit as common substrates. Using TFA as an acid promoter, an intramolecular ipso-Friedel–Crafts alkylation of phenol derivatives, formation of an iminium cation via a rearomatization-promoted C–C bond cleavage, an aza-Prins reaction, and a 6-membered ring