反应条件
1: 78 percent / hydrazine hydrate / tetrahydrofuran; H2O / 0.17 h / 50 °C 2: 90 percent / methanol / 1 h / Heating 3: 47 percent / KOH / tetrahydrofuran; H2O / 0.03 h / Ambient temperature 4: 69 percent / NaOMe / methanol / 2 h / Ambient temperature 5: 93 percent / NaOH / H2O / 24 h / Ambient temperature View Scheme
参考文献
Seela, Frank; Steker, Herbert
Heterocycles, 1985 , vol. 23, # 10 p. 2521 - 2524
