反应条件
1.1: aq. AcOH / tetrahydrofuran / 48 h / 20 °C
2.1: Zn dust; aq. NH4OAc / tetrahydrofuran / 2 h / 20 °C
3.1: 2,2'-dipyridyl disulfide; PPh3 / toluene / 1 h / 20 °C
3.2: 40 percent / AgOTf / toluene / 0.5 h / 20 °C
4.1: 87 percent / trifluoroacetic acid / CH2Cl2 / 6 h / 20 °C
View Scheme
参考文献
Kusaka, Shin-Ichi; Dohi, Suguru; Doi, Takayuki; Takahashi, Takashi
Tetrahedron Letters, 2003 , vol. 44, # 49 p. 8857 - 8859
