1: potassium carbonate / acetone / 5 h / Reflux 2: palladium 10 on activated carbon; hydrogen / methanol / 3 h / 20 °C / Inert atmosphere View Scheme

1: With sodium hydroxide in water; toluene T=0 - 20°C; 48 h; 2: With hydrogenchloride in water; toluene T=0°C;

sodium hydrogencarbonate in methanol T=20°C; 2.5 h;