Enantioselective Synthesis of Wieland-Miescher Ketone through Bimorpholine-Catalyzed Organocatalytic Aldol Condensation - Kriis, Kadri; Kanger, Tõnis; Laars, Marju; Kailas, Tiiu; Müürisepp, Aleksander-Mati; Pehk, Tõnis; Lopp, Margus (Synlett, 2006)