1: LiAlH4 / diethyl ether / Heating 2: 84 percent / MnO2 / CH2Cl2 / Heating 3: 70 percent / (Ph3P)2Rh(CO)Cl, 1,3-bis(diphenylphosphino)propane / 1,3,5-trimethyl-benzene / Heating 4: 57 percent / 1.) t-BuLi / 1.) THF, -78 deg C, 2.) -78 deg C to room temp. View Scheme

Multi-step reaction with 3 steps 1: LiAlH4 / diethyl ether / Heating2: 84 percent / MnO2 / CH2Cl2 / Heating3: 70 percent / (Ph3P)2Rh(CO)Cl, 1,3-bis(diphenylphosphino)propane / 1,3,5-trimethyl-benzene / Heating