| 摘要 |
1528831 Nuclear-iodinated iodine compounds BASF AG 28 Jan 1976 [29 Jan 1975] 03260/76 Heading C2C A process for the manufacture of an aromatic nuclear-iodinated iodine compound comprises reacting an aromatic diazonium salt with hydriodic acid or a salt thereof, the reaction being carried out in aqueous solution and in the presence of a reducing agent for the reduction of elementary iodine formed to hydrogen iodide. Preferred reducing agents are sulphur dioxide, neutral and acid salts of sulphurous acid, salts of thiasulphuric acid, salts of diathionous acids, sulphinic acids and salts thereof. The reaction of the process may be carried out at from 0 to 100‹ C. and preferably from 20 to 50‹ C.
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