1: With sodium tetrahydroborate in methanol T=20°C; 0.5 h; 2: With hydrogenchloride in methanol; water 3: With sodium hydroxide in methanol; water pH=9;

1: 84 percent / toluene / 0.75 h / 80 °C 2: 83 percent / 80percent aq. AcOH / 8 h / Heating View Scheme