反应条件
1: hydrazine, conc. HCl / ethanol / 5 h / Heating
2: 86 percent / conc. HCl, NaNO2, K2CO3 / H2O / 4.5 h
3: 92 percent / xylene / 2 h / Heating
4: NaNO2, HCl / H2O
View Scheme
参考文献
Atherton; Lambert
Tetrahedron, 1983 , vol. 39, # 15 p. 2599 - 2608