1: 1.) sodamide / 1.) toluene, reflux, 30 min, 2.) toluene, reflux, 30 min 2: 1.) lithium diisopropylamide / 1.) hexane/THF, -10 deg C, 2.) THF, amb. temp., 2 h View Scheme

lithium diisopropyl amide 1.) hexane/THF, -10 deg C, 2.) THF, amb. temp., 2 h; Yield given. Multistep reaction;