Bis(oxazolines) 1 - 5 were examined in copper(II)-catalyzed asymmetric
Diels-Alder reactions of acrylimide 6 and cyclopentadiene. Highly ena
ntioselective reactions were attained with ligand 1 (up to 95% e.e.) a
s well as good endo selectivity (39:1) in the Cu(SbF6)(2)-catalyzed pr
ocess.