Green and efficient diazotization-iodination of aryl amines using cellulose sulfuric acid as a biodegradable and recyclable proton source under solvent-free condition

Abstract

This article describes simple and efficient method for the diazotization and iodination of different aromatic amines over cellulose sulfuric acid, sodium nitrite and potassium iodide under solvent-free conditions at room temperature. Various aryl amines possessing electron-withdrawing groups or electron-donating groups are converted into the corresponding aryl iodides in 54%–97% yields. Advantages of this methodology are the use of mild reaction conditions, avoiding the use of harmful acids and toxic solvents and short reaction time.