反应条件
1.1: acetic acid; iron / ethanol; water / 0.33 h / 60 °C 2.1: sodium nitrite; acetic acid / toluene; water / 0.5 h / 20 °C 2.2: pH 8 - 9 3.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 16 h / 20 °C 4.1: hydrogenchloride / water; methanol / 3 h / 20 °C 4.2: pH 8 - 9 View Scheme
