often a challenge in reactions conducted in TFE or HFIP as residues of the fluorinated solvent frequently remain in the product, making it a sticky paste that does not precipitate in ether. Addition of a few drops of methanol to the ether solution will aid this issue by partly dissolving the paste, resulting in precipitation of the pure product upon vigorous stirring. Furthermore, it should be noted that diaryliodonium tosylates often become rather sticky compared to their triflate analogues, and could need prolonged stirring in ether to fully precipitate. Lastly, we would like to address the stoichiometry of reagents for step 2. In Kita's method, 2.0 equiv of the Koser's reagent was used to improve the yields of salts 3 with challenging substrates. We found that better results were achieved when increasing the loading of arene 2 to 2.0 equiv instead, as excess of 7 is difficult to separate from product 3. Previously we have reported the synthesis of product 3k in 57% yield following the original procedure by Kita. By using the updated conditions in Scheme 3b, 3k was isolated in 95% yield.