sodium nitrite in water; N,N-dimethyl-formamide T=80 - 90°C; 24 h;

1: 58 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / dimethylformamide / 2 h 2: 93 percent / NaNO2 / H2O; dimethylformamide / 24 h / 80 - 90 °C View Scheme

1: 80 percent / methanolic ammonia / dimethylformamide / 22 h / 130 °C / a sealed, glass-lined steel bomb 2: 85 percent / H2 / PtO2 / ethanol; ethyl acetate / 0.5 h / 1520 Torr / Ambient temperature 3: acetic anhydride / 1 h / Heating View Scheme

ammonia in N,N-dimethyl-formamide T=130°C; 22 h; a sealed, glass-lined steel bomb;

1: 80 percent / methanolic ammonia / dimethylformamide / 22 h / 130 °C / a sealed, glass-lined steel bomb 2: 85 percent / H2 / PtO2 / ethanol; ethyl acetate / 0.5 h / 1520 Torr / Ambient temperature View Scheme