2026-04-17T07:58:28Zhttps://recercat.cat/oai/request

oai:recercat.cat:2072/3586172024-12-20T15:52:25Zcom_2072_300912com_2072_4427col_2072_301309

A Redox-Active Nickel Complex that Acts as an Electron Mediator in Photochemical Giese Reactions van Leeuwen, Thomas Buzzetti, Luca Perego, Luca Alessandro Melchiorre, Paolo Abstract: We report a simple protocol for the photochemical Giese addition of C(sp3)-centered radicals to a variety of electron-poor olefins. The chemistry does not require external photoredox catalysts. Instead, it harnesses the excited-state reactivity of 4-alkyl-1,4-dihydropyridines (4-alkyl-DHPs) to generate alkyl radicals. Crucial for reactivity is the use of a catalytic amount of Ni(bpy)32+ (bpy = 2,2’-bipyridyl), which acts as an electron mediator to facilitate the redox processes involving fleeting and highly reactive intermediates. 2019-07-09T12:16:17Z 2024-04-23T10:16:43Z 2019-07-09T12:16:17Z 2024-04-23T10:16:43Z 2019-07-09T12:16:17Z 2024-04-23T10:16:43Z 2019-02-12 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/2072/358617 https://doi.org/10.1002/anie.201814497 eng info:eu-repo/grantAgreement/EC/FP7/681840 info:eu-repo/semantics/openAccess L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/ RECERCAT (Dipòsit de la Recerca de Catalunya)