Metal‐Free Hydrophosphoryloxylation of Ynamides: Rapid Access to Enol Phosphates

Abstract We herein report a metal‐free hydrophosphoryloxylation of ynamides with phosphoric acids, which provides an expeditious route to access useful enol phosphates. The advantages of this protocol include exclusive selectivity, short reaction time, high efficiency, and broad substrate scope. Additionally, the products can serve as good partners in Suzuki‐Miyaura cross‐coupling.