反应条件
1: 81 percent / BF3*OEt2 / 3 h / 20 °C
2: 66 percent / 2.5 h / Heating
3: NaCl / dimethylsulfoxide
4: p-TSA / toluene / 3 h / Heating
5: 90 percent / DDQ / CH2Cl2
6: 92 percent / CH3CH2COOH / 2 h / 130 °C
7: 81 percent / TMSI / pyridine / 1 h / 20 °C
8: 85 percent / NaOAc / ethanol / Heating
9: 80 percent / DDQ / dioxane / Heating
10: 76 percent / O3; DMS / CH2Cl2
View Scheme
参考文献
Chavan, Subhash P.; Sivappa, Rasapalli
Tetrahedron Letters, 2004 , vol. 45, # 20 p. 3941 - 3943
