Figure 4: Catalytic HDH of a mixture containing equimolar amounts of of 4-halophenols (A) and halobenzenes (B) in ethanol-water (50/50, v/v) over 5% Pd/C catalyst with reaction time.

Reaction conditions: each solvent (80 mL), each HAC (0.8 mmol), NaOH (0.105 g, 3.52 mmol), 5% Pd/C (20 mg), temperature (30 °C), H2: 10 mL min−1.