1: 76 percent / K2CO3 / dimethylformamide / 48 h / Ambient temperature 2: 94 percent / p-TsOH / benzene / Heating 3: 96 percent / LiAlH4 / diethyl ether / 1 h / Heating 4: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 5: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme

1: 76 percent / K2CO3 / dimethylformamide / 48 h / Ambient temperature 2: 94 percent / p-TsOH / benzene / Heating 3: 96 percent / LiAlH4 / diethyl ether / 1 h / Heating 4: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 5: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme

1: 94 percent / p-TsOH / benzene / Heating 2: 96 percent / LiAlH4 / diethyl ether / 1 h / Heating 3: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 4: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme

1: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 2: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme

1: 96 percent / LiAlH4 / diethyl ether / 1 h / Heating 2: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 3: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme

hydrogenchloride; potassium tert-butylate 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h; Yield given. Multistep reaction;

potassium tert-butylate in tert-butyl alcohol; benzene 72 h; Ambient temperature;