Abstractα‐ And β‐tosylated alkenylaromatic systems5c, dand9a‐care cyclized to6c, dand10a‐cin FSO3H‐containing SO2in synthetically useful processes. Dibal‐H treatment of α‐substituted6c, dbrings about rapid, high‐yield detosylation to7c, d; the β‐tosylated isomers10a‐cgive, with Dibal‐H, after 18 h in refluxing toluene, mainly unreacted sulfones together with minor amounts of sulfides11a‐c. Ring‐disrupted congeners15a‐dand18a‐cbehave likewise, with α–tosylated15a‐dbeing rapidly detosylated by Dibal‐H to16a‐dand their β‐substituted isomers undergoing low‐yield reductions to sulfides19a‐c. Dibal‐H mediated detosy