1: 75 percent / 30percent H2SO4 / diethyl ether / 1 h / Heating 2: 38 percent / 85percent HCOOH, 30percent H2O2 / Ambient temperature 3: 1.) NaNH2 / 1.) benzene, reflux, 1 h, 2.) benzene, reflux, overnight View Scheme

1: 75 percent / 30percent H2SO4 / diethyl ether / 1 h / Heating 2: 38 percent / 85percent HCOOH, 30percent H2O2 / Ambient temperature 3: 1.) NaNH2 / 1.) benzene, reflux, 1 h, 2.) benzene, reflux, overnight View Scheme

1: 38 percent / 85percent HCOOH, 30percent H2O2 / Ambient temperature 2: 1.) NaNH2 / 1.) benzene, reflux, 1 h, 2.) benzene, reflux, overnight View Scheme

sodium amide 1.) benzene, reflux, 1 h, 2.) benzene, reflux, overnight; Yield given. Multistep reaction;