Asymmetric Allylic C–H Alkylation of Allyl Ethers with 2‑Acylimidazoles

An asymmetric allylic
C–H alkylation of allyl ethers has been established by chiral
phosphoramidite-palladium catalysis, affording a wide variety of functionalized
chiral 2-acylimidazoles in moderate to high yields and with high levels
of enantioselectivity. Moreover, this protocol could be applied to
a concise asymmetric synthesis of a tachykinin receptor antagonist.