sodium tetrahydroborate in ethanol T=0°C; 2 h;

1: 90 percent / potassium carbonate / acetone / 4 h / Heating 2: 85 percent / ammonium acetate; acetic acid / 4 h / 100 °C 3: 80 percent / sodium borohydride / ethanol / 2 h / 0 °C View Scheme

1: 85 percent / sulfuric acid / 6 h / 90 °C 2: 90 percent / potassium carbonate / acetone / 4 h / Heating 3: 85 percent / ammonium acetate; acetic acid / 4 h / 100 °C 4: 80 percent / sodium borohydride / ethanol / 2 h / 0 °C View Scheme

1: 85 percent / ammonium acetate; acetic acid / 4 h / 100 °C 2: 80 percent / sodium borohydride / ethanol / 2 h / 0 °C View Scheme

1: 91 percent / bromine / methanol / 1 h / cooling 2: 85 percent / sulfuric acid / 6 h / 90 °C 3: 90 percent / potassium carbonate / acetone / 4 h / Heating 4: 85 percent / ammonium acetate; acetic acid / 4 h / 100 °C 5: 80 percent / sodium borohydride / ethanol / 2 h / 0 °C View Scheme