Iminium ion catalysis: the enantioselective Friedel-Crafts alkylation-acetalization cascade of naphthols with α,β-unsaturated cyclic ketonesElectronic supplementary information (ESI) available: Experimental deatails, NMR and HPLC spectra. CCDC 893970 (10de) and 894320 (6da). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c2cc35582e

The first enantioselective Friedel-Crafts alkylation-acetalization-cascade of naphthols with α,β-unsaturated cyclic ketones and 1 H -inden-1-ones was realized. 9-Amino(9-deoxy) epi -quinine A was the catalyst of choice for the realization of polycyclic structures with high enantiocontrol. The first enantioselective Friedel-Crafts alkylation-acetalization-cascade of naphthols with α,β-unsaturated cyclic ketones and 1 H -inden-1-ones was realized. 9-Amino(9-deoxy) epi -quinine A was the catalyst of choice for the realization of polycyclic structures with high enantiocontrol.