Access to Cyclic Aliphatic Sulfonyl Fluorides via Diels–Alder Cycloaddition

Sulfur(VI) fluoride exchange (SuFEx) compounds are gaining increasing attention due to their various applications. We present the Diels-Alder reaction of ethenesulfonyl fluoride and analogues to rapidly access cyclic and bicyclic SuFEx derivatives in moderate to good yields. These derivatives have been shown to be useful intermediates in a variety of synthetic transformations to expand the toolkit for the preparation of cyclic aliphatic sulfonyl fluorides.