ctones bearing vicinal tertiary and quaternary stereocenters through organocatalyzed asymmetric allylicalkylation is reported. The process demonstrated that weakly stabilized enolates derived from α-aryl-γ-butyrolactones can undergo regio-, diastereo-, and enantioselective allylation using the proper activation of Morita–Baylis–Hillman (MBH) carbonates.
Toward Efficient and Stereoselective Aromatic and Dearomative Cope Rearrangements: Experimental and Theoretical Investigations of α‐Allyl‐α’‐Aromatic γ‐Lactone Derivatives.
Fine-tuning substituents of the 1,5-hexadiene motif supported by calculations enable the stereoselective dearomative or aromatic Cope rearrangements of α-allyl α′-heteroaromatic lactones, overcoming the drastic thermodynamic and kinetic requirements of such reactions.