Pharmaceutical/Chemical: Diphenyliodonium chloride is used as a reagent for electrophilic phenylation . It is used as a reactant for copper-catalyzed cross coupling reactions of purinesband
arylation of anilines. It is involved in the preparation of acetylenic arylselenide and (arylmethylene)oxindoles. Further, it is employed in the preparation of aryl alkynes through Sonogashira
coupling reactions.