1: 84 percent / various solvent(s) / 50-60 degC, 20 min, rt. 20 h 2: cc. HCl, hydrogen / 10percent palladium on carbon / methanol / 3 h / 760 Torr 3: α,α-dichloromethyl methyl ether / 0.17 h / 50 °C View Scheme

in various solvent(s) 50-60 degC, 20 min, rt. 20 h;