An Efficient and General One-Pot Method for the Synthesis of Chiral Bis(oxazoline) and Pyridine Bis(oxazoline) Ligands - Cornejo, A; Fraile, J M; García, J I; Gil, M J; Martínez-Merino, V; Mayoral, J A; Pires, E; Villalba, I (Synlett, 2005)