ammonium chloride; zinc in ethanol; water T=60°C; 3 h;

1: HNO3+H2SO4 / 50 °C 2: alcohol; ammonia View Scheme

1: With potassium hydroxide; tris-(dibenzylideneacetone)dipalladium(0); di-tert-butyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine in 1,4-dioxane; water T=80°C; 0.5 h; 2: With hydrogenchloride in 1,4-dioxane; water; ethyl acetate

pyridine hydrochloride T=200°C; 1 h;

1: Diazotization.Umsetzung des Diazoniumsalzes mit CuCl 2: hydrochloric acid / 165 °C View Scheme