1: 98 percent / aq. NaOH / Heating 2: 94 percent / conc. H2SO4 / Heating 3: 94 percent / LiAlH4 / diethyl ether / 12 h / Heating 4: 96 percent / PCC / CH2Cl2 / 2 h / Ambient temperature View Scheme

sodium hydroxide Heating;

1: 98 percent / aq. NaOH / Heating 2: 94 percent / conc. H2SO4 / Heating 3: 94 percent / LiAlH4 / diethyl ether / 12 h / Heating 4: 94 percent / SOCl2, pyridine / benzene / 1 h / Heating View Scheme

1: 98 percent / aq. NaOH / Heating 2: 94 percent / conc. H2SO4 / Heating 3: 94 percent / LiAlH4 / diethyl ether / 12 h / Heating View Scheme