反应条件
1: 93 percent / 1) BuLi / 1) THF, hexane, -78 deg C, 1 h, 2) THF, HMPA, -78 deg C, 2 h 2: 1 N aq. HCl / tetrahydrofuran / 24 h / Ambient temperature 3: Na2CO3 / tetrahydrofuran / 3 h / Ambient temperature 4: 78 percent / Ti(OEt)4 / 1 h / 130 °C View Scheme
参考文献
Helvetica Chimica Acta, , vol. 75, # 8 p. 2572 - 2582
