Enantioselective synthesis of tricyclic oxoquinolines via NHC-catalyzed Michael-aldol-lactamization-dehydration cascade

NHC-catalyzed cascade reaction of enals with malonates bearing a 2-aminophenyl group leading to the enantioselective synthesis of tricyclic oxoquinolines via the chiral α,β-unsaturated acylazoliums is presented.