1: 90 percent / 10percent aq. sulphuric acid / 5 h / Heating; further reagent 2: 71 percent / silver nitrite / dimethylformamide / 70 °C View Scheme

1: 90 percent / 10percent aq. sulphuric acid / 5 h / Heating; further reagent 2: 5 percent / silver nitrite / dimethylformamide / 70 °C View Scheme

sulfuric acid 5 h; Heatingfurther reagent;

1: 90 percent / 10percent aq. sulphuric acid / 5 h / Heating; further reagent 2: 5 percent / silver nitrite / dimethylformamide / 70 °C 3: 59 percent / sodium amide, iron(III) chloride / liquid ammonia; diethyl ether / -50 °C 4: 64 percent / lithium aluminium hydride / diethyl ether / 3 h / Heating View Scheme