sodium nitrite in water; dimethyl sulfoxide T=20°C; 148 h;

sodium nitrite in water; dimethyl sulfoxide T=71°C; 72 h;

hydrogen; palladium dihydroxide in ethanol T=70°C; P=750.075 Torr;

1: phenyl nitromethane With n-butyllithium in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide; hexane T=-78°C; 2 h; 2: n-bromopentane in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide; hexane 10 h;