Frontispiece: Extended Enolates: Versatile Intermediates for Asymmetric C‐H Functionalization via Noncovalent Catalysis

Extended enolates, particularly dienolates, may be generated upon deprotonation of α,β(and most usually β,γ)-unsaturated carbonyl compounds by treatment with base. While known for more than half a century, their use in catalytic asymmetric bond-forming reactions has remained underdeveloped until recently. The Minireview M. Oiarbide and C. Palomo on page 10226 highlights the reactivity selectivity problems encountered during generation subsequent reaction control, how both metallic organic catalysts complement to make direct enantioselective C−H functionalization various categories enolizable via dienolate intermediates feasible.