反应条件
1.1: sulfuric acid; nitric acid / 5 - 35 °C 2.1: acetic anhydride / 0.25 h / 35 °C 2.2: 8 h / 125 °C 3.1: thionyl chloride; N,N-dimethyl-formamide / toluene / 35 - 115 °C 3.2: 10 °C / pH 8 - 9 4.1: hydrogen / methanol / 14 h / 35 - 60 °C / 4500.45 Torr 5.1: N-ethyl-N,N-diisopropylamine / 10 h / 120 °C 6.1: hydrogen bromide; 4-hydroxy-benzoic acid / acetic acid / 50 °C 7.1: triethylamine / acetonitrile / 48 h / 35 - 80 °C View Scheme
