1: 1.) 9-BBN, 2.) lithium diisopropylamide, 3.) NaOH, H2O2 2: diethyl ether 3: 70 percent / LAH / diethyl ether / 5 h 4: 91 percent / pyridinium chlorochromate / CH2Cl2 / 1 h 5: 85 percent / diethyl ether / 5 h / Heating 6: 96 percent / pyridine / 24 h / Heating 7: 95 percent / LAH / diethyl ether View Scheme

1: 1.) 9-BBN, 2.) lithium diisopropylamide, 3.) NaOH, H2O2 2: diethyl ether 3: 70 percent / LAH / diethyl ether / 5 h View Scheme

sodium hydroxide; 9-borabicyclo[3.3.1]nonane dimer; dihydrogen peroxide; lithium diisopropyl amide Multistep reaction;

1: 1.) 9-BBN, 2.) lithium diisopropylamide, 3.) NaOH, H2O2 2: diethyl ether View Scheme