hydrogenchloride in acetone 0.25 h; Heating;

Multi-step reaction with 6 steps 1: cuprous iodide, magnesium metal / tetrahydrofuran / 0.5 h / -40 °C2: pyridine / Ambient temperature3: acetic anhydride / 72 h / Ambient temperature4: 87 percent / tetrahydrofuran / 1 h / Heating5: 82 percent / tri-n-butyltin hydride / α,α'-azobisisobutyronitrile / benzene / 0.5 h / Heating6: 75 percent / 1N aqueous hydrochloric acid / acetone / 2.5 h / 70 °C