Direct Iodination of Aromatic Compounds with Iodine and Alumina-Supported Copper(II) Chloride or Sulfate

The iodination of aromatic compounds (polymethylbenzenes, alkyl phenyl ethers, and polynuclear aromatic hydrocarbons) with iodine in combination with copper(II) chloride or sulfate supported on alumina proceeds well under mild conditions to selectively give monoiodinated compounds in high yields.