Hydrogen was initially introduced into the autoclave at a pressure of 10 bar before being reduced to 1 bar by carefully releasing the stop valve. This procedure was repeated three times, and the vessel was pressurized to 50 bars. The mixture was vigorously stirred (750 rpm) at 22 °C for 24 h. The autoclave was carefully vented, and the solvent was removed under reduced pressure. The crude solid was purified by flash column chromatography (silica, n-pentane/EtOAc/CH2Cl2, 7:1:1 to 2:1:1) to obtain (Sp)-4-acetyl[2.2]paracyclophane (455 mg, 1.82 mmol, 46%) and (Rp,R)-1-( Specific Rotation: