Abstract
We report a Cu-catalyzed asymmetric ring-opening reaction of cyclic diaryliodoniums with 1,1,1,3,3,3-hexafluoroisopropanol (HFIP), enabling the construction of axially chiral biaryl compounds containing HFIP ether. HFIP is highly polar and exceptionally stable; thus, it is commonly used as a solvent due to its poor nucleophilicity. However, its use as a nucleophilic reagent has been rare. In this study, we successfully employed HFIP as a nucleophilic coupling partner in a Cu-catalyzed asymmetric ring-opening experiment of cyclic diaryliodoniums.
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