Chiral 1, 2, 3, 4-tetrahydroquinoline derivatives have found widespread application in the preparation of naturally occurring alkaloids and pharmaceutically relevant molecules.[1] Their great synthetic importance has stimulated a boom in the development of asymmetric synthetic methods.[2, 3] The most common access to this structural motif is the asymmetric reduction of quinolines.[3] Although it is straightforward, this approach requires preformed ...