反应条件
1: 75 percent / Na / toluene / Heating 2: DBU / CH2Cl2 / 48 h / 24 °C 3: 100 percent / LiN(TMS)2 / tetrahydrofuran / -78 °C 4: 1) BH3*Me2S 2) Me3NO / 1) THF, -78 to 25 deg C 2) toluene, 1.5h, reflux 5: 90 percent / n-Bu4NF / tetrahydrofuran / 2 h / 0 to 25 deg C View Scheme
参考文献
Tetrahedron Letters, , vol. 31, # 34 p. 4827 - 4830
