Table 2. Performance Comparison of Fe3O4@SiO2–DTPA–Pd, Catalyst I, Catalyst II, Catalyst III, and Fe3O4@SiO2–APBA–Pd Catalysts in Four Suzuki Reactionsa.
Conditions: 0.5 mmol aryl halide, 0.6 mmol PBA, 1.0 mmol K2CO3 as the base, 2 mg catalysts, EtOH/H2O (v/v, 2:1, 4 mL) as the solvent, 60 °C, 1 h.
Reaction 6 h.