ChemInform Abstract: The Copper-Catalyzed Asymmetric Construction of a Dispiropyrrolidine Skeleton via 1,3-Dipolar Cycloaddition of Azomethine Ylides to α-Alkylidene Succinimides.

A series of chiral dispiropyrrolidines (III), (V), and (VII) is readily prepared by a copper-catalyzed 1,3-dipolar cycloaddition of azomethine ylides (II) and (IV) to α-alkylidene succinimides (I) and (VI), respectively. [ABSTRACT FROM AUTHOR]