2026-04-13T03:01:20Zhttps://recercat.cat/oai/requestoai:recercat.cat:2072/3586172024-12-20T15:52:25Zcom_2072_300912com_2072_4427col_2072_301309
RECERCAT
author
van Leeuwen, Thomas
author
Buzzetti, Luca
author
Perego, Luca Alessandro
author
Melchiorre, Paolo
2019-07-09T12:16:17Z2024-04-23T10:16:43Z
2019-07-09T12:16:17Z2024-04-23T10:16:43Z
2019-02-12
http://hdl.handle.net/2072/358617
https://doi.org/10.1002/anie.201814497
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.
eng
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A Redox-Active Nickel Complex that Acts as an Electron Mediator in Photochemical Giese Reactions
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