pyridine; hydroxylamine hydrochloride in various solvent(s) 2 h; Heating;

1: 1.) NaNH2 / 1.) Et2O, reflux, 1 h, 2.) Et2O, reflux, 1 h 2: 58 percent / HgO / aq. H2SO4 / 2 h / Heating 3: 90 percent / NH2OH*HCl, pyridine / various solvent(s) / 2 h / Heating View Scheme

1: 58 percent / HgO / aq. H2SO4 / 2 h / Heating 2: 90 percent / NH2OH*HCl, pyridine / various solvent(s) / 2 h / Heating View Scheme