A New Achiral Template for Enantioselective Transformations. -The Diels-Alders reaction of 3-isoxazolidinone acrylate (Ia) with cyclopentadiene in the presence of a chiral bisoxazoline proceeds with high diastereo-and enantioselectivity. The analogous reaction of crotonate (Ib) is less efficient with respect to selectivity. -(SIBI*, M. P.; GUSTAFSON, B.; COULOMB, J.; Bull. Korean Chem.