反应条件
1: 1.) LiNH2, HMPTA / 1.) RT, 1 h, 2.) a) 10 deg C, 1 h, b) RT, 15 h, c) 55 deg C, 10 h 2: 85 percent / p-TsOH / methanol; H2O / 18 h / 20 °C 3: 1.) iso-BuMgBr, 2.) Cp2TiCl2 / 1.) diethyl ether, 0 deg C, 15 min, 2.) diethyl ether, RT, 3 h 4: 98 percent / pyridinium chlorochromate / CH2Cl2 / 2 h / 20 °C View Scheme
参考文献
Chemistry of Natural Compounds, , vol. 23, p. 242 - 244
Khimiya Prirodnykh Soedinenii, , # 2 p. 286 - 289
