Combined Photoredox and Iron Catalysis for the Cyclotrimerization of Alkynes

[EN] Successful combinations of visible-light photocatalysis with metal catalysis have recently enabled the development of hitherto unknown chemical reactions. Dual mechanisms from merging metal-free photocatalysts and earth-abundant metal catalysts are still in their infancy. We report a photo-orga...

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Detalles Bibliográficos
Autores: Neumeier, Michael, Chakraborty, Uttam, Schaarschmidt, Dieter, de la Pena O'Shea, Victor, Jacobi von Wangelin, Axel, Pérez-Ruiz, Raúl|||0000-0003-1136-3598
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/193483
Acceso en línea:https://riunet.upv.es/handle/10251/193483
Access Level:acceso abierto
Palabra clave:QUIMICA ORGANICA
Descripción
Sumario:[EN] Successful combinations of visible-light photocatalysis with metal catalysis have recently enabled the development of hitherto unknown chemical reactions. Dual mechanisms from merging metal-free photocatalysts and earth-abundant metal catalysts are still in their infancy. We report a photo-organo-iron-catalyzed cyclotrimerization of alkynes by photoredox activation of a ligand-free Fe catalyst. The reaction operates under very mild conditions (visible light, 20 degrees C, 1 h) with 1-2 mol % loading of the three catalysts (dye, amine, FeCl2).