Substrate scope of the addition of C-nitrosos to 1a.
Conditions: 1 (0.2 mmol), 2a–o (0.2 mmol, 1 equiv.), 3 mL C6H6, N2 atmosphere (glovebox). Isolated yields.
Mixture of imine/enamine tautomers. See ESI for enamine characterization.
1H NMR yield vs. 1,3,5-trimethoxybenzene internal standard = 0.2 M.