Preparation and X-ray structures of 2-[(aryl)iodonio]benzenesulfonates: novel diaryliodonium betaines

Herein we present a concise preparation and characterization of 2-[(aryl)iodonio]benzenesulfonates. Determination of the X-ray crystal structure reveals a distorted trigonal bipyramidal molecular geometry about iodine and a pseudo-square geometry within the unit cell. Initial experiments point to the promising application of these compounds for unique 2-sulfonyloxyarenes. (C) 2009 Elsevier Ltd. All rights reserved.