Organocatalytic Enantioselective Vinylogous Allylic Alkylation between β,γ‐Unsaturated Pyrazoleamides and MBH Carbonates

Abstract The direct asymmetric vinylogous allylic alkylation is an efficient method to construct chiral 1,5‐diene compounds. In this work, acyclic unsaturated amides are used as a nucleophile for enantioselective vinylogous allylic alkylation. With 10 mol % of chiral tertiary amine C11 , the enantioselective vinylogous allylic alkylation between β,γ‐unsaturated pyrazoleamides and Morita‐Baylis‐Hillman carbonates is achieved, affording optically active multifunctional chiral 1,5‐dienes in moderate‐to‐excellent yields (74–99 %) with good‐to‐excellent enantioselectivities (67–94 % ee).