1: 1.) NaH / 1.) xylene, reflux, 2 h, 2.) xylene, reflux, 1.5 h 2: 86 percent / 1.) NH2NH2*H2O, 2.) concd. HCl / ethanol / Heating; 1.) 2 h, 2.) 0.5 h View Scheme

1: 1.NaH / 1.) xylene, reflux, 2 h, 2.) xylene, reflux 2: 0.05 N NaClO4 / acetonitrile / pH 4 View Scheme