1: 92 percent / aq. 90percent acetic acid / 2 h / 85 °C 2: 92 percent / H2, 10percent Pd/C / methanol / Ambient temperature View Scheme

With  acetic acid T=85°C; 2 h;   

Multi-step reaction with 4 steps 1: 96 percent / p-toluenesulfonic acid monohydrate / 15 h / Ambient temperature2: 78 percent / mercuric cyanide; molecular sieve (4 Amgstroem) / nitromethane; toluene / 3 h / Ambient temperature3: 99 percent / sodium methoxide; methanol / CH2Cl2 / overnight; pH = 94: 80 percent / potassium hydroxide / dimethylformamide