1: 1.) BuLi / 1.) ether, hexane, 2.) ether, reflux, 4 h 2: 96 percent / ethanol / 42 h / Heating 3: 90 percent / KOH / ethanol / 20 h / Heating 4: thionyl chloride / 0.17 h / Heating 5: diethyl ether / 4.5 h / Ambient temperature View Scheme

1: thionyl chloride / 0.17 h / Heating 2: diethyl ether / 4.5 h / Ambient temperature View Scheme

1: 96 percent / ethanol / 42 h / Heating 2: 90 percent / KOH / ethanol / 20 h / Heating 3: thionyl chloride / 0.17 h / Heating 4: diethyl ether / 4.5 h / Ambient temperature View Scheme

1: 90 percent / KOH / ethanol / 20 h / Heating 2: thionyl chloride / 0.17 h / Heating 3: diethyl ether / 4.5 h / Ambient temperature View Scheme

in diethyl ether 4.5 h; Ambient temperature; Yield given;