反应条件
1: PPE / CHCl3 / 30 h / 25 °C
2: 75 percent / NaH / tetrahydrofuran / 16 h / Heating
3: 95 percent / C5H5NHBr3, AcOH / 1 h / 25 °C
4: 65 percent / DBU / CH2Cl2 / 10 h / 25 °C
5: 85 percent / K2CO3 / acetone / 10 h / Heating
6: 74 percent / LDA / tetrahydrofuran / 1.5 h / -78 °C
7: 80 percent / NaBH4, K2CO3 / methanol / 0.5 h / 25 °C
8: 95 percent / (NH4)2Ce(NO3)6 / acetonitrile; H2O / 0.25 h / 25 °C
9: K2CO3 / dimethylformamide
10: aq. Na2S2O4
11: K2CO3 / acetone / 6 h / Heating
12: aq. KOH / ethanol / 10 h / 25 °C
13: PPE / CHCl3 / 36 h / 25 °C
14: aq. KOH / ethanol / 8 h / 25 °C
16: PCC / CH2Cl2 / 15 h / 25 °C
17: 82 percent / K2CO3 / methanol / 36 h / 25 °C
18: 95 percent / ceric ammonium nitrate / acetonitrile; H2O
19: 85 percent / Et3N*BCl3 / CH2Cl2 / 0.25 h / 0 °C
View Scheme
参考文献
Rama Rao; Yadav; Kishta Reddy; Upender, Velaparthi
Tetrahedron Letters, 1991 , vol. 32, # 38 p. 5199 - 5202
