ammonia in tetrahydrofuran T=0°C; 4 h;

1: 39 percent / nitrosyl chloride / tetrahydrofuran; pyridine / 2.5 h / -20 °C 2: 90 percent / ammonia / tetrahydrofuran / 4 h / 0 °C View Scheme

1: 57 percent / hydroxylamine hydrochloride, 15percent aq. NaOH / aq. ethanol / 120 h / Heating 2: 39 percent / nitrosyl chloride / tetrahydrofuran; pyridine / 2.5 h / -20 °C 3: 90 percent / ammonia / tetrahydrofuran / 4 h / 0 °C View Scheme