1: 76.5 percent / sulfuric acid / CH2Cl2 / 40 h / 20 °C 2: N,N-diisopropylethylamine / dioxane / 0.83 h / 20 °C 3: 239.3 mg / aq. hydrochloric acid / 2 h / pH 5 View Scheme

1: N,N-diisopropylethylamine / dioxane / 0.83 h / 20 °C 2: 239.3 mg / aq. hydrochloric acid / 2 h / pH 5 View Scheme

1: 98.2 percent / NaHCO3 / H2O; 1,2-dimethoxy-ethane / 0.26 h / 20 °C 2: 76.5 percent / sulfuric acid / CH2Cl2 / 40 h / 20 °C 3: N,N-diisopropylethylamine / dioxane / 0.83 h / 20 °C 4: 239.3 mg / aq. hydrochloric acid / 2 h / pH 5 View Scheme

hydrogenchloride pH=5; 2 h;