1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione in dimethyl sulfoxide T=20°C; 2 h;

1: thionyl chloride / 14 h / Reflux 2: sodium tetrahydroborate / ethanol / 14 h / Reflux 3: thionyl chloride / toluene / 20 °C 4: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C 5: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 2 h / 20 °C View Scheme

1: sodium tetrahydroborate / ethanol / 14 h / Reflux 2: thionyl chloride / toluene / 20 °C 3: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C 4: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 2 h / 20 °C View Scheme

1: thionyl chloride / toluene / 20 °C 2: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C 3: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 2 h / 20 °C View Scheme

1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 °C 2: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 2 h / 20 °C View Scheme