hydrogen; palladium on activated charcoal in methanol 16 h;

1: CH2Cl2 / 2 h 2: 100 percent / H2 / 10percent Pd/C / methanol / 16 h View Scheme

1: 100 percent / DCC / CH2Cl2 / 18 h 2: 1.) aq. HCl, 2.) aq. NaHCO3 / 1.) CHCl3 3: LiAlH4 / tetrahydrofuran / 15 h / Heating 4: CH2Cl2 / 2 h 5: 100 percent / H2 / 10percent Pd/C / methanol / 16 h View Scheme

1: CH2Cl2 / 2 h 2: 100 percent / H2 / 10percent Pd/C / methanol / 16 h View Scheme

1: LiAlH4 / tetrahydrofuran / 15 h / Heating 2: CH2Cl2 / 2 h 3: 100 percent / H2 / 10percent Pd/C / methanol / 16 h View Scheme