1.1: nitric acid; acetic acid; sulfuric acid / 1 h / 0 - 20 °C 2.1: palladium 10 on activated carbon; hydrogen / ethanol; methanol; acetic acid / 36 h / 20 °C 3.1: sodium nitrite; sulfuric acid / water / 0.5 h / 0 °C 3.2: 2 h / 100 °C 4.1: 4-(N,N-dimethlyamino)pyridine; triethylamine / N,N-dimethyl-formamide / 50 °C 5.1: hydrazine hydrate / tert-butyl alcohol / 110 °C / |Inert atmosphere 6.1: trifluoroacetic acid / dichloromethane / 20 °C View Scheme

peracetic acid; sulfuric acid; potassium bromide; sodium tungstate in acetic anhydride; acetic acid 1 h;

sodium tungstate; NaBO3; sulfuric acid; acetic anhydride; potassium bromide in acetic acid 1 h; Ambient temperature;

potassium permanganate; magnesium sulfate

1: (i) NaH, DMF, (ii) /BRN= 506028/, (iii) LiAlH4, Et2O View Scheme

T=20 - 25°C; 24 h; Irradiationon silica gel; Yield given;

hydrogenchloride; sodium nitrite in dichloromethane T=20 - 25°C; 0.25 h;

1: aqueous potassium hypochlorite / anschliessend Behandeln mit Benzol und Aluminiumchlorid in Tetrachloraethan 2: aqueous hydrochloric acid View Scheme

n-butyllithium in tetrahydrofuran; hexane Heating;