Table 6. Furan Substrate Scopea,b.
Co(III) conditions: O-methyl oxime 6 (0.20 mmol), aldehyde 2 (0.40 mmol), 5 (10 mol %), and AcOH (10 mol %) in 1,4-dichloroethane (2.0 M) for 24 h.
Isolated yields after silica gel chromatography.
Rh(III) conditions: O-methyl oxime 6 (0.20 mmol), aldehyde (0.40 mmol), [Cp*RhCl2]2 (5 mol % of Rh dimer), and AgSbF6 (20 mol %) in tetrahydrofuran (0.3 M) at 90 °C for 24 h.
Reaction was conducted using [Cp*RhCl2]2 (10 mol % of Rh dimer) and AgSbF6 (40 mol %).