反应条件
1: 99 percent / (COCl)2; DMSO; Et3N / tetrahydrofuran / 2 h / -78 - 20 °C
2: 58 percent / BF3*OEt2 / CH2Cl2 / 3 h / -78 °C
3: 82 percent / PPh3; CBr4 / CH2Cl2 / 2 h / Heating
4: 78 percent / DBU / toluene / 24 h / 20 °C
5: 99 percent / lithium 1-propanethiolate / hexamethylphosphoric acid triamide / 0.5 h / 20 °C
View Scheme
参考文献
Toyama, Ken-ichi; Tauchi, Tetsuo; Mase, Nobuyuki; Yoda, Hidemi; Takabe, Kunihiko
Tetrahedron Letters, 2006 , vol. 47, # 40 p. 7163 - 7166
