hydrogenchloride; hydrogen; palladium on activated charcoal in methanol Catalytic hydrogenation; 3 h;

1: t-BuOK / tetrahydrofuran; 2-methyl-propan-2-ol / 24 h / 25 °C 2: DMAP; Ac2O / diethyl ether / 25 °C 3: 76 percent / H2; aq. HCl / 5 percent Pd/C / methanol / 3 h View Scheme

1: DMAP; Ac2O / diethyl ether / 25 °C 2: 76 percent / H2; aq. HCl / 5 percent Pd/C / methanol / 3 h View Scheme