Iodination of aryl amines in a water-paste form via stable aryl diazonium tosylates

摘要

The diazotization of aryl amines at room temperature in paste form with NaNO2,p-TsOH and a small amount of water,followed by treatment with KI provides a new,simple,and effective route for the preparation of various aryl iodides.The water-paste and strong acid-free reaction conditions are environmentally friendly and compatible with acid-sensitive functional groups.