Regio- and stereoselective iodoarylation of arylacetylenes using molecular iodine promoted by hypervalent iodine

Iodoarylation of arylacetylenes with electron-rich arenes using a simple reagent system: I2 and PhI(OCOPh)2 proceeded regio- and stereoselectively to give trans adducts, 1,1-diaryl-2-iodoethenes, in good to high yields.