Intramolecular Nickel-Catalyzed Reductive Coupling: Enantioselective Synthesis of Tetrahydroisoquinolines and Related Heterocycles.
The P-chiral phosphine AntPhos was found to be the ligand of choice for nickel-catalyzed intramolecular reductive coupling reactions of 5-amino substituted 2,4-dienoates bearing a tethered aldehyde. This approach to heterocyclic compounds has little precedent in the literature; it provides, inter alia, ready access to...