1: 92 percent / CH2Cl2 / 4.5 h / 20 °C 2: 65 percent / LiAlH4 / diethyl ether / 3 h / 0 - 20 °C View Scheme

in methanol T=0°C; 1.5 h;

potassium carbonate in acetonitrile T=50°C; 24 h;

1: 76 percent / CH2Cl2 / 6.5 h / 20 °C 2: 90 percent / methanol / 12 h / 0 - 20 °C View Scheme

1: 95 percent / H2 / 10percent Pd/C / methanol / 1 h / Ambient temperature 2: 75 percent / methanol / Ambient temperature View Scheme

1: 77 percent / Ph3P, DEAD / tetrahydrofuran / Ambient temperature 2: 83 percent / Zn, 1.) M aq. KH2PO4 / tetrahydrofuran / 4 h / Ambient temperature 3: 95 percent / H2 / 10percent Pd/C / methanol / 1 h / Ambient temperature 4: 75 percent / methanol / Ambient temperature View Scheme

1: 83 percent / Zn, 1.) M aq. KH2PO4 / tetrahydrofuran / 4 h / Ambient temperature 2: 95 percent / H2 / 10percent Pd/C / methanol / 1 h / Ambient temperature 3: 75 percent / methanol / Ambient temperature View Scheme

1: KHCO3 / H2O; dioxane 2: ethanol View Scheme