asymmetric aldol reaction is an emerging catalytic methodology that provides atom‐economical access to functionalized chiral building blocks. Thioamides are useful aldol donors due to their high‐fidelity chemoselective enolization and divergent post‐aldol transformations. Herein we describe the incorporation of an α‐vinyl appendage on a thioamide, which expands the utility of aldoladducts for natural