1: 88 percent / K2CO3 / dimethylformamide / 15 h / 80 °C 2: 1.) NaBH4; 2.) 4 M HCl / 1.) methanol, 25 deg C, 2 h; 2.) THF, 25 deg C, 1.5 h View Scheme

potassium carbonate in acetone

Multi-step reaction with 2 steps 1: 98 percent / 10percent aq. NaOH / hexane / 4 h / Ambient temperature2: 60 percent / ethanol / 3 h