Patent ID: 7355067
Filing Date: 2008-04-08
Classification: C07C

Abstract:
1. A process for preparing triiodotrimesic acid comprising reacting triiodomesitylene in an oxidation process with potassium or sodium permanganate in a mixture that comprises acetic acid anhydride, acetic acid and sulfuric acid at a temperature of 10 to 120° C. for 12 to 36 hours, and then isolating the obtained 1,3,5-triiodo-2,4-diacetoxymethylene-6-methylbenzene, which is then treated with a base for 1.5 to 34 hours at a temperature of 60 to 100° C., then the reaction solution is neutralized and then it is treated with an aqueous potassium or sodium permanganate solution at a temperature of 60 to 100° C. for 1 to 24 hours in an oxidation process.