反应条件
1: 31 percent / aq. HCl, NaNO2 / 3 h / Ambient temperature 2: 52 percent / dimethylformamide / 8 h / Heating 3: 68 percent / aq. NaOH / methanol / 1 h / Ambient temperature 4: diphenylphosphoric azide, Et3N / 2-methyl-propan-2-ol / 3 h / Heating 5: H2O / 1 h / Heating View Scheme
参考文献
Troschutz; Karger
Journal of Heterocyclic Chemistry, 1996 , vol. 33, # 6 p. 1815 - 1821