反应条件
1: 88 percent / K2CO3, 18-crown-6 / 168 h / Ambient temperature 2: 60 percent / LDA / tetrahydrofuran / 1.) -78 deg C to -40 deg C, 2.) -78 deg C 3: 65 percent / HCO2H, NEt3 / PPh3/Pd(OAc)2 / dioxane / 72 h / Heating 4: 83 percent / NaBH4 / tetrahydrofuran; methanol / 1.) 0 deg C to r.t., 2.) 40 deg C, 2 d 5: 98 percent / 2 h / 405 °C / 0.01 Torr 6: 72 percent / H2 / 10percent Pd/CaCO3 / methanol / 12 h / Ambient temperature 7: PCC, sodium acetate / CH2Cl2 / 19 h View Scheme
