1: 51 percent / xylene / 2 h / Heating 2: 1.) H2N-NH2*H2O, 2.) NaNO2, acetic acid / 1.) acetic acid, CH3OH, 1,5 h, reflux, 2.) CH2Cl2, H2O, 1,5 h, 0 deg C View Scheme

hydrazine hydrate; acetic acid; sodium nitrite 1.) acetic acid, CH3OH, 1,5 h, reflux, 2.) CH2Cl2, H2O, 1,5 h, 0 deg C; Yield given. Multistep reaction;