反应条件
1: 75 percent / 48percent HBr / Heating 2: 99 percent / p-toluenesulfonic acid 3: 1.) LiNH2, HMPTA / 1.) RT, 1 h, 2.) a) 10 deg C, 1 h, b) RT, 15 h, c) 55 deg C, 10 h 4: 85 percent / p-TsOH / methanol; H2O / 18 h / 20 °C 5: 1.) iso-BuMgBr, 2.) Cp2TiCl2 / 1.) diethyl ether, 0 deg C, 15 min, 2.) diethyl ether, RT, 3 h 6: 98 percent / pyridinium chlorochromate / CH2Cl2 / 2 h / 20 °C View Scheme
参考文献
Odinolov, V. N.; Dzhemilev, U. M.; Ishmuratov, G. Yu.; Botsman, L. P.; Vostrikova, O. S.; et al.
Chemistry of Natural Compounds, 1987 , vol. 23, p. 242 - 244
Khimiya Prirodnykh Soedinenii, 1987 , # 2 p. 286 - 289
