1: 1-amino-2-nitro-4-chlorobenzene With hydrogenchloride; C26H28N6O4S in water T=10°C; 1 h; 2: N-(2-chlorophenyl)-3-oxo-butanamide With sodium hydroxide; acetic acid in water T=25 - 90°C; pH=6; 2.5 h;

1: HCl, sodium nitrite / H2O / 0 °C 2: 10percent NaOH / aq. ethanol View Scheme

sodium hydroxide in ethanol Yield given;