title: Eosin Y (EY) Photoredox-Catalyzed Sulfonylation of Alkenes: Scope and Mechanism.
abstract: Alkyl- and aryl vinyl sulfones were obtained by eosin Y (EY)-mediated visible-light photooxidation of sulfinate salts and the reaction of the resulting S-centered radicals with alkenes. Optimized reaction conditions, the sulfinate and alkene scope, and X-ray structural analyses of several reaction products are provided. A detailed spectroscopic study explains the reaction mechanism, which proceeds through the EY radical cation as key intermediate oxidizing the sulfinate salts.
authors.affiliation: University of Regensburg Faculty of Chemistry and Pharmacy, Institute of Organic Chemistry, Universitätsstrasse 31, 93053, Regensburg, Germany.
authors.forename: Andreas Uwe
authors.initials: AU
authors.lastname: Meyer
authors.affiliation: University of Regensburg Faculty of Chemistry and Pharmacy, Institute of Organic Chemistry, Universitätsstrasse 31, 93053, Regensburg, Germany.
authors.forename: Karolína
authors.initials: K
authors.lastname: Straková
authors.affiliation: University of Regensburg Faculty of Chemistry and Pharmacy, Institute of Organic Chemistry, Universitätsstrasse 31, 93053, Regensburg, Germany.|Department of Chemistry and RECETOX, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
authors.forename: Tomáš
authors.initials: T
authors.lastname: Slanina
authors.affiliation: University of Regensburg Faculty of Chemistry and Pharmacy, Institute of Organic Chemistry, Universitätsstrasse 31, 93053, Regensburg, Germany. Burkhard.Koenig@ur.de.
authors.forename: Burkhard
authors.identifier: http://orcid.org/0000-0002-6131-4850
authors.initials: B
authors.lastname: König
keywords: alkyl sulfinates; photocatalysis; reaction mechanisms; transient spectroscopy; vinyl sulfones