sodium hydroxide; dihydrogen peroxide; diborane 1.) THF, RT, 2.) from 30 deg C to 50 deg C, 1 h; Yield given. Multistep reaction;

1: 1.) t-BuOK, 2.2 M n-BuLi / 1.) pentane, hexane, 10 min, 2.) THF, RT, 1 h 2: 1.) B2H6, 2.) 3 N NaOH, 30percent H2O2 / 1.) THF, RT, 2.) from 30 deg C to 50 deg C, 1 h View Scheme

1: 1.) t-BuOK, 2.2 M n-BuLi / 1.) pentane, hexane, 10 min, 2.) THF, RT, 1 h 2: 1.) B2H6, 2.) 3 N NaOH, 30percent H2O2 / 1.) THF, RT, 2.) from 30 deg C to 50 deg C, 1 h View Scheme