反应条件
1: 1.) CuBr-Me2S, TMSCl, HMPA 2.) m-CPBA, Na2HPO4, / 1.) THF, -100 deg C, 2.) H2O-CH2Cl2, 0 deg C 2: 97 percent / MeONa / 1 h / Ambient temperature 3: 95 percent / CF3COOH / 0.02 h / Ambient temperature 4: 84 percent / air, CuCl / PdCl2 / dimethylformamide; H2O / Ambient temperature 5: acid / methanol / Ambient temperature 6: 1.) m-CPBA, 2.) TsOH / 1.) room temperature, 6.5 h, 2.) AcOH-H2O 7: 62 percent / LDA / tetrahydrofuran / -78 °C 8: 90 percent / BBr3 / CH2Cl2 / 48 h / 0 °C View Scheme
参考文献
Asaoka, Morio; Fujii, Naoaki; Shima, Kunihisa; Takei, Hisashi
Chemistry Letters, 1988 , # 5 p. 805 - 808
