Highly Diastereo- and Enantioselective Cross-Cascade Reactions of Different Enones.

Cascading ketones! The first highly efficient asymmetric cross ‐ cascade reaction of different α,β ‐ unsaturated ketones catalyzed by an easily prepared bulky primary amine salt has been developed. It affords the corresponding diverse products containing three to four contiguous stereocenters with excellent enantio ‐ and diastereoselectivities (see scheme). [ABSTRACT FROM AUTHOR]