反应条件
1: 1.) conc. HCl, aq. NaNO2, 2.) aq. KOH, 4.) HCl / 1) 0 deg C, 15 min, pH 3-4; 2) ethanol, 0 deg C; 3) ethanol, 0 deg C, 3 h, pH 5-6, 4 deg C, 12 h; 4) ethanol, 78 deg C, 2 h 2: 99 percent / KOH / ethanol; H2O / 1 h / Heating 3: 94 percent / copper / quinoline / 2.5 h / Heating View Scheme
参考文献
Journal of Organic Chemistry, , vol. 62, # 21 p. 7447 - 7456