Sulfonic Acid Based Cation-Exchange Resin: A Novel Proton Source for One-Pot Diazotization—Iodination of Aromatic Amines in Water.

One-Pot Diazotization–Iodination of Aromatic Amines in Water V ct r D. Filimonov,*a Nadya I. Semenischeva,a Elena A. Krasnokutskaya,a Alexei N. Tretyakov,a Ho Yun Hwang,b Ki-Whan Chi*b a Department of Organic Chemistry, Tomsk Polytechnic University, 634050 Tomsk, Russia Fax +7(3822)563637; E-mail: filimonov@tpu.ru b Department of Chemistry, University of Ulsan, 680-749 Ulsan, Republic of Korea E-mail: kwchi@ulsan.ac.kr Received 14 September 2007; revised 19 October 2007