1: NaOH / dioxane; H2O / 1.) room temp.; 2.) 45 deg C, 10 min 2: sodium acetate, H2 / Pd/C (10percent Pd) / benzene; methanol / 40 °C / 760 Torr 3: 74 percent / KH2PO4, Fremy-salt, 1 N NaOH / H2O; acetone; ethanol / 0.25 h 4: AlCl3 View Scheme

1: 91 percent / 2 N NaOH / dioxane / Ambient temperature 2: 88 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature View Scheme

1: 91 percent / 2 N NaOH / dioxane / Ambient temperature 2: 88 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature 3: 87 percent / PbO2 / CHCl3 / further reagents: FeCl3 in MeOH 4: 97 percent / HNO3 (65 percent) / 0.03 h View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 80 percent / Ag₂O / CHCl₃ / 2 h<br />2: aq. Na₂S₂O₄ / CH₂Cl₂; diethyl ether / 0.17 h<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 80 percent / Ag₂O / CHCl₃ / 2 h<br />2: aq. Na₂S₂O₄ / CH₂Cl₂; diethyl ether / 0.17 h<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: Ag₂O / CHCl₃ <br />2: 90 percent / Na₂S₂O₄ / H₂O; ethanol<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: 17 percent / NaCr₂O₇/conc. H₂SO₄ / H₂O / 1) 10-20 deg C, 1 h, 2) CHCl₃, overnight<br />2: 96 percent / Ag₂O / CHCl₃ / Heating<br />3: Na₂S₂O₄ / diethyl ether; CHCl₃; H₂O<br /> <br /> &nbsp;