The organocatalytic [3+2] cycloaddition of azomethine ylides and α,β-unsaturated aldehydes as a convenient tool for the enantioselective synthesis of pyrrolizidines and indolizidines

1. Iza, A.
2. Carrillo, L.
3. Vicario, J.L.
4. Badía, D.
5. Reyes, E.
6. Martínez, J.I.