Visible Light-Mediated Carbamoylation of para -Quinone Methides.

We report a photocatalytic approach for the installation of the amide moiety onto para -quinone methides. This transformation features a net reductive approach for the generation of carbamoyl radicals from amide-substituted Hantzsch ester derivatives under transition metal-free conditions. This protocol exhibits wide scope and allows access to diarylacetamides employing a C-C bond formation approach.