1: sodium nitrite, conc. H2SO4 / acetic acid; H2O / 0.17 h / 8 - 10 °C 2: 68percent HNO3 / H2O / 0.25 h / 45 °C 3: 58 percent / NaOH / H2O / 2 h / 40 - 45 °C 4: 1) KOtBu, 2) 10percent H2O2, 3N NaOH / 1) benzene; 24h, reflux; 24h, r.t. View Scheme

1: 68percent HNO3 / H2O / 0.25 h / 45 °C 2: 58 percent / NaOH / H2O / 2 h / 40 - 45 °C 3: 1) KOtBu, 2) 10percent H2O2, 3N NaOH / 1) benzene; 24h, reflux; 24h, r.t. View Scheme

1: 58 percent / NaOH / H2O / 2 h / 40 - 45 °C 2: 1) KOtBu, 2) 10percent H2O2, 3N NaOH / 1) benzene; 24h, reflux; 24h, r.t. View Scheme

sodium hydroxide; potassium tert-butylate; dihydrogen peroxide 1) benzene; 24h, reflux; 24h, r.t.; Yield given. Multistep reaction;