Organophotocatalytic Carbamoylation of Morita‐Baylis‐Hillman Carbonates

Abstract

AbstractHerein, we demonstrate that carbamoyl radicals generated through an organophotocatalytic protocol from 4‐carbamoyl‐dihydropyridines (carbamoyl‐DHPs) can be incorporated into Morita‐Baylis‐Hillman (MBH) carbonates, affording a range of polyfunctionalized scaffolds with yields ranging from 63–98%. Reaction monitoring experiments, scale‐up, reuse of the organophotocatalyst, and the hydrogenation of the succinamic ester's alkene moiety was also conducted, in order to showcase the mechanistic features and the robustness of this photochemical protocol.