1.1: zinc; hydrogenchloride / water / |Inert atmosphere; |Reflux 1.2: 20 °C / |Inert atmosphere 2.1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 20 °C / |Inert atmosphere View Scheme

1.1: AlCl3, aluminium chloride / dichloromethane / 20 °C / |Inert atmosphere 2.1: zinc; hydrogenchloride / water / |Inert atmosphere; |Reflux 2.2: 20 °C / |Inert atmosphere 3.1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 20 °C / |Inert atmosphere View Scheme

Kochen des erhaltenen Acetals mit Salzsaeure;