1: 85 percent / H2 / 5percent Pd-BaSO4 / ethyl acetate / 2 h 2: 95 percent / NaOAc / 0.5 h / Heating 3: NaOH / methanol / 0.08 h / Ambient temperature 4: 98 percent / K2CO3 / acetone / 0.5 h / Heating View Scheme

potassium carbonate in water; acetone 60 h; Heating;

hydrogen; palladium on barium sulfate in ethyl acetate 2 h;