Organocatalytic Direct Vinylogous Michael Addition of α,β-Unsaturated γ-Butyrolactam to α,β-Unsaturated Aldehydes and an Illustration to Scaffold Diversity Synthesis
Ideal for scaffold diversity synthesis: The first organocatalytic direct vinylogous Michaeladdition of N‐Boc α,β‐unsaturated γ‐butyrolactam to α,β‐unsaturated aldehydes has been developed. The products with multiple orthogonal sets of functionalities were transformed into diverse enantioenriched natural‐product‐like or drug‐like molecules with fused bi‐, tri‐, or polycyclic scaffolds (see scheme)