hydrogenchloride; SnCl2·2H2O in methanol; water 5 h; Reflux; Product distribution / selectivity;

1.1: 14 h / 80 °C / Inert atmosphere 2.1: sodium carbonate; dihydrogen peroxide / water; acetone / 14 h / 20 °C 3.1: toluene-4-sulfonic acid / toluene / 14 h / Reflux 4.1: trichlorophosphate / 14 h / 100 °C 4.2: 0 °C / pH 6 - 7 5.1: sodium azide / N,N-dimethyl-formamide / 4 h / 80 °C 6.1: hydrogenchloride; SnCl2·2H2O / water; methanol / 5 h / Reflux View Scheme

1.1: sodium carbonate; dihydrogen peroxide / water; acetone / 14 h / 20 °C 2.1: toluene-4-sulfonic acid / toluene / 14 h / Reflux 3.1: trichlorophosphate / 14 h / 100 °C 3.2: 0 °C / pH 6 - 7 4.1: sodium azide / N,N-dimethyl-formamide / 4 h / 80 °C 5.1: hydrogenchloride; SnCl2·2H2O / water; methanol / 5 h / Reflux View Scheme

1.1: toluene-4-sulfonic acid / toluene / 14 h / Reflux 2.1: trichlorophosphate / 14 h / 100 °C 2.2: 0 °C / pH 6 - 7 3.1: sodium azide / N,N-dimethyl-formamide / 4 h / 80 °C 4.1: hydrogenchloride; SnCl2·2H2O / water; methanol / 5 h / Reflux View Scheme

1.1: trichlorophosphate / 14 h / 100 °C 1.2: 0 °C / pH 6 - 7 2.1: sodium azide / N,N-dimethyl-formamide / 4 h / 80 °C 3.1: hydrogenchloride; SnCl2·2H2O / water; methanol / 5 h / Reflux View Scheme

1: sodium azide / N,N-dimethyl-formamide / 4 h / 80 °C 2: hydrogenchloride; SnCl2·2H2O / water; methanol / 5 h / Reflux View Scheme