Reaktion ueber mehrere Stufen;

1: 84 percent / conc. HCl / dioxane / 2.5 h / Ambient temperature 2: 2) 6.25percent aq. HCl / 1) acetone, water 3: 87 percent / NaClO2, Na2CO3 / H2O; ethyl acetate / 6.5 h / 25 °C / or oxidation with Br2 View Scheme

1: 84 percent / conc. HCl / dioxane / 2.5 h / Ambient temperature 2: 2) 6.25percent aq. HCl / 1) acetone, water 3: 1) AgNO3, 1N NaOH, 2) Ac2O / 1) H2O, EtOH, r.t., 2) reflux, 5 min View Scheme