1: 570 mg / HgCl2, HgO / acetonitrile; H2O / 5 h / Heating 2: diethyl ether / 1 h / -5 °C 3: 580 mg / CrO3*Py / CH2Cl2 4: 6percent NaOH / H2O; dioxane / 6 h / Ambient temperature View Scheme

1: 570 mg / HgCl2, HgO / acetonitrile; H2O / 5 h / Heating 2: diethyl ether / 1 h / -5 °C 3: 580 mg / CrO3*Py / CH2Cl2 View Scheme

<b>Multi-step reaction with 4 steps<br /> </b>1: 100 percent / CH₂Cl₂ / 6 h / Ambient temperature<br />2: 93 percent / n-Bu₄NF / tetrahydrofuran / 2 h / Ambient temperature<br />3: 77 percent / pyridinium chlorochromate, Celite / CH₂Cl₂ / 2 h / Ambient temperature<br />4: 81 percent / BF₃*Et₂O / CH₂Cl₂ / 1 h / Ambient temperature<br /> <br /> &nbsp;