反应条件
1: 81 percent / SO2Cl2, pyridine / CH2Cl2 / 1.) 0 deg C, 1 h, 2.) 20 deg C, 2 h 2: 5.7 percent / disodium edetate, 1,1,1-trifluoroacetone, NaHCO3, Oxone / acetonitrile; H2O / 48 h 3: 0.07 h / 162 °C 4: 77 percent / LiAlH4 / tetrahydrofuran / 0.5 h View Scheme
