The photocatalytic carbofunctionalization of N-sulfinylamines offers an efficient route to diverse sulfinamides, yet the direct use of inexpensive boronic acids as radical precursors has been limited due to their high oxidation potentials. To address this, we developed a Lewis base-assisted strategy that generates a sp3-hybridized tetracoordinated boronate complex in situ with a markedly lowered redox potential. This approach enables a practical and atom-economical photocatalytic synthesis of sulfinamides directly from N-sulfinylamines and commercially available boronic acids.
Zhao et al. (Tue,) studied this question.