反应条件
1: 56 percent
2: p-toluenesulfonic acid / Heating
3: 1) CaCO3, Br2, 2) Li2CO3, / 1) CCl4, water, 0-5 deg C, 30 min, 2) DMF, 30 min, reflux
4: 95.8 percent / pyridine; ethanol / 22 h / Ambient temperature
5: 84.6 percent / 25percent (i-Bu)2AlH / benzene; hexane / 1.5 h / 0 - 5 °C
6: 77.9 percent / triethylamine / CH2Cl2 / 0.5 h
7: 57percent NaH / 1,2-dimethoxy-ethane / 18 h / Heating
8: 64.2 percent / KOH / H2O; methanol / 18 h / Heating
9: 84 percent / various solvent(s) / Heating
10: 90 percent / 2N HCl / acetone / 5 h / Heating
11: 94.9 percent / p-toluenesulfonic acid / 17 h / Heating
View Scheme
参考文献
Bernady; Poletto; Nocera; et al.
Journal of Organic Chemistry, 1980 , vol. 45, # 23 p. 4702 - 4715
