反应条件
1: 75 percent / tetrahydrofuran / 0 deg C to rt, 3 h
2: 96 percent / NaBH4 / trifluoroacetic acid / 10 deg C to 15 deg C, rt, overnight
3: 80 percent / nBuLi / tetrahydrofuran / -78 deg C, 70 min, -78 deg C to rt
4: 1.) trifluoroacetic anhydride, 2.) CrO3 / 1.) CH2Cl2, 0 deg C to rt, 2.) aq. AcOH, rt, 3 h
View Scheme
参考文献
Almeida, Wanda P.; Costa, Paulo R.R.
Synthetic Communications, 1996 , vol. 26, # 23 p. 4507 - 4518