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The authors claimed that the high reduction potential required for the reaction in acetonitrile was achieved by the radical anion of the photocatalyst in its excited state, which initiated the reaction. This mechanism is usually named consecutive photoinduced electron transfer (ConPeT), in which two photons are involved: the first one to excite the photocatalyst and generate the radical anion\n                    <jats:bold>4DPAPN<\/jats:bold>\n                    <jats:sup>\u2022\u2013<\/jats:sup>\n                    and the second photon to promote\n                    <jats:bold>4DPAPN<\/jats:bold>\n                    <jats:sup>\u2022\u2013<\/jats:sup>\n                    to its excited state *\n                    <jats:bold>4DPAPN<\/jats:bold>\n                    <jats:sup>\u2022\u2013<\/jats:sup>\n                    . Employing ultrafast transient absorption spectroscopy, here we report that, although two photons are indeed involved in this transformation, the excited state *\n                    <jats:bold>4DPAPN<\/jats:bold>\n                    <jats:sup>\u2022\u2013<\/jats:sup>\n                    is short\u2010lived, not emissive, and not quenched by the organic substrate employed in the reaction, opposite to what was claimed by the authors. The photocatalyst in the excited state *\n                    <jats:bold>4DPAPN<\/jats:bold>\n                    <jats:sup>\u2022\u2013<\/jats:sup>\n                    can generate a solvated electron that is able to reduce the substrate involved in this chemistry. It is worth noting that a different photochemical mechanism is likely to be operative in CH\n                    <jats:sub>2<\/jats:sub>\n                    Cl\n                    <jats:sub>2<\/jats:sub>\n                    , where solvated electrons are much less stabilized and reduction of the solvent might occur.\n                  <\/jats:p>","DOI":"10.1002\/anie.202420009","type":"journal-article","created":{"date-parts":[[2025,3,23]],"date-time":"2025-03-23T08:42:17Z","timestamp":1742719337000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Unlocking the ConPeT Mechanism: Correspondence on \u201cCatalytic Asymmetric Redox\u2010Neutral [3\u00a0+\u00a02] Photocycloadditions of Cyclopropyl Ketones with Vinylazaarenes Enabled by Consecutive Photoinduced Electron Transfer\u201d"],"prefix":"10.1002","volume":"64","author":[{"given":"Marco","family":"Villa","sequence":"first","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Fermi","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Calogero","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Gualandi","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paola","family":"Franchi","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Lucarini","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara","family":"Ventura","sequence":"additional","affiliation":[{"name":"Istituto per la Sintesi Organica e la Fotoreattivit\u00e0 (ISOF) Consiglio Nazionale delle Ricerche (CNR)  Via Gobetti 101 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pier Giorgio","family":"Cozzi","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paola","family":"Ceroni","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica \u201cGiacomo Ciamician\u201d Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"},{"name":"Center for Chemical Catalysis\u2013C3 Alma Mater Studiorum\u2013Universit\u00e0 di Bologna  Via Gobetti 85 Bologna 40129 Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,3,21]]},"reference":[{"key":"e_1_2_6_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr300503r"},{"key":"e_1_2_6_2_1","first-page":"423","volume-title":"Photoorganocatalysis in Organic Synthesis, Vol. 18","author":"Cozzi P. 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