Oxazolines, especially chiral bis(oxazoline) (BOX, 1), have been successfully used in many catalytic asymmetric reactions as versatile ligands in the past decade. 1, 1a, 1b, 1c, 1d, 1e and 1f In addition, the oxazoline unit and adjacent hydroxy group may function together to control the catalytic process. 2, 2a, 2b, 2c and 2d On the other hand, Hong and his co-workers have reported the use of Schiff-bases as ligands in the palladium-catalyzed Suzuki cross-coupling ...
