1: 86 percent / H2 / Raney nickel / acetone 2: 84 percent / phenol, hexamethyldisilazane / benzene / Heating 3: 1.) lithium bis(trimethylsilyl)amide, 2.) hydrochloric acid / 1.) THF, -78 deg C, 1.5 h, 2.) water View Scheme

1: 82 percent / 10percent aq. sodium hydroxide / 96 h 2: 86 percent / H2 / Raney nickel / acetone 3: 84 percent / phenol, hexamethyldisilazane / benzene / Heating 4: 1.) lithium bis(trimethylsilyl)amide, 2.) hydrochloric acid / 1.) THF, -78 deg C, 1.5 h, 2.) water View Scheme

1: 84 percent / phenol, hexamethyldisilazane / benzene / Heating 2: 1.) lithium bis(trimethylsilyl)amide, 2.) hydrochloric acid / 1.) THF, -78 deg C, 1.5 h, 2.) water View Scheme

hydrogenchloride; lithium hexamethyldisilazane 1.) THF, -78 deg C, 1.5 h, 2.) water; Yield given. Multistep reaction;