反应条件
1: 1) t-butyllithium / 1) THF, pentane, -100 deg C, 0.5 h, 2) THF, pentane, -100 deg C, 0.5 h
2: hidrazine / aq. ethanol; acetic acid / 50 °C
3: 2.) NaBH4 / 1) MeOH, RT, 0.2 h, 2) MeOH, 1 h
4: 90 percent / hydrogen / 4percent Pd/C / methanol; acetic acid / 2585.7 Torr / Ambient temperature
5: determination of e.e. (86percent)
View Scheme
参考文献
Meyers; Dickman; Boes
Tetrahedron, 1987 , vol. 43, # 21 p. 5095-5108
